![Dec 21, 2022 · [1/7] The collapsed second story porch of a house is seen after a strong 6.4-magnitude earthquake struck off the coast of northern California, in Rio Dell, California, U.S. December 20, 2022 ... . Collier butler obituaries gadsden al](/img/512x512/433795167735.webp)
Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 01:44:29 2023 Here are the earthquakes appearing on this map, most recent at top ...Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 10:47:59 2023 Here are the earthquakes appearing on this map, most recent at top ...Since the three damaging earthquakes that occurred in the American Midwest and the East Coast ( 1755 Cape Ann, 1811–12 New Madrid, 1886 Charleston) were well known, it became apparent to settlers that the earthquake hazard was different in California. While the 1812 San Juan Capistrano, 1857 Fort Tejon, and 1872 Owens Valley shocks were in ... List of Notable and Major California Earthquakes California's Earthquake History. Although earlier earthquakes have been documented—such as significant movement on the southern San Andreas fault all the way back to the 1600s—the earliest reported earthquake in California was on July 28, 1769, noted by members of a Spanish expedition to chart a land route from San Diego to Monterey. Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 11:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ...Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 22:00:02 2023 Here are the earthquakes appearing on this map, most recent at top ... Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 04:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ... Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 21:00:00 2023 Here are the earthquakes appearing on this map, most recent at top ...The Latest Earthquakes application supports most recent browsers, view supported browsers. If the application does not load, try our legacy Latest Earthquakes application.If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .There have been: (M1.5 or greater) 91 earthquakes in the past 24 hours. 851 earthquakes in the past 7 days. 3,594 earthquakes in the past 30 days. 52,362 earthquakes in the past 365 days. The New Year's Day earthquake, with a preliminary magnitude of 5.4, struck about 9 miles southeast of Rio Dell in Humboldt County just after 10:30 a.m. local time (1:35 p.m. ET) Sunday, according ...If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Sep 5, 2023 · Recent Earthquakes in California and Nevada San Francisco Special Map. Click on an earthquake on the above map for more information. Update time = Wed Sep 6 09:00:01 2023 Sep 3, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 01:44:29 2023 Here are the earthquakes appearing on this map, most recent at top ... Danville has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 5 earthquakes in the past 7 days. 32 earthquakes in the past 30 days. 404 earthquakes in the past 365 days. Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 21:00:00 2023 Here are the earthquakes appearing on this map, most recent at top ... The largest earthquake in South Lake Tahoe: this month: 3.1 in Smith Valley , Nevada , United States. this year: 5.5 in Westwood , California , United States. Sorted: Recent. Filter By Magnitude. Nearby Places. 1 week ago 1.6 magnitude, 7 km depth. Smith Valley , Nevada , United States. 1 week ago 1.5 magnitude, 6 km depth. Sep 7, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 07:06:50 2023 Here are the earthquakes appearing on this map, most recent at top ... Northern California has had: (M1.5 or greater) 6 earthquakes in the past 24 hours. 62 earthquakes in the past 7 days. 263 earthquakes in the past 30 days. 3,617 earthquakes in the past 365 days.Recent Earthquakes in California and Nevada San Francisco Special Map. Click on an earthquake on the above map for more information. Update time = Wed Sep 6 09:00:01 2023Recent Earthquakes in California and Nevada. Did you feel it? - Click Here. Click on an earthquake on the above map for a zoomed-in view. Magnitude = ? for new earthquakes until a magnitude is determined (takes 4-5 minutes). Maps are updated within 1-5 minutes of an earthquake or once an hour. Aug 29, 2023 · An average of 234 earthquakes with magnitudes between 3.0 and 4.0 occur each year in California and Nevada, according to a recent three-year data sample. The earthquake occurred at a depth of 11.1 ... Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Sat Sep 2 05:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ...USGS Magnitude 2.5+ Earthquakes, Past Day. 2.5. 28 km NW of Susitna, Alaska. 2023-09-04 22:00:11 (UTC-07:00) 52.0 km. 3.7. 83 km NNE of Cruz Bay, U.S. Virgin Islands. 2023-09-04 21:50:36 (UTC-07:00) 14.0 km. Sep 3, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 01:44:29 2023 Here are the earthquakes appearing on this map, most recent at top ... Southern California has had: (M1.5 or greater) 5 earthquakes in the past 24 hours. 40 earthquakes in the past 7 days. 337 earthquakes in the past 30 days. 2,494 earthquakes in the past 365 days.If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Sep 4, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 00:00:04 2023 Here are the earthquakes appearing on this map, most recent at top ... Sep 5, 2023 · Recent Earthquakes in California and Nevada San Francisco Special Map. Click on an earthquake on the above map for more information. Update time = Wed Sep 6 09:00:01 2023 The Earthquake Event Page application supports most recent browsers, view supported browsers. Or, try our Real-time Notifications, Feeds, and Web Services . undefined Earthquake damage is seen at the Humboldt Creamery building in Loleta, Calif., Tuesday, Dec. 20, 2022. A strong earthquake shook a rural stretch of Northern California early Tuesday, jolting ...Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Mon Sep 4 15:00:02 2023 Here are the earthquakes appearing on this map, most recent at top ...If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Dec 21, 2022 · [1/7] The collapsed second story porch of a house is seen after a strong 6.4-magnitude earthquake struck off the coast of northern California, in Rio Dell, California, U.S. December 20, 2022 ... If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Earthquake Hazards Program. The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. We undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP), a four-agency partnership established by Congress.Sep 4, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Mon Sep 4 15:00:02 2023 Here are the earthquakes appearing on this map, most recent at top ... Latest Earthquakes. 2.6. 16 km SW of Toms Place, CA. 2023-08-28 08:16:35 (UTC-07:00) 2.7 km. 2.7. 6 km ENE of Round Valley, CA. 2023-08-25 06:37:33 (UTC-07:00) 7.9 km. California, United States has had: (M1.5 or greater) 17 earthquakes in the past 24 hours 121 earthquakes in the past 7 days; 712 earthquakes in the past 30 days; 7,550 earthquakes in the past 365 days Oregon, United States has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 5 earthquakes in the past 7 days. 33 earthquakes in the past 30 days. 407 earthquakes in the past 365 days. Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Sun Sep 3 12:00:37 2023 Here are the earthquakes appearing on this map, most recent at top ...Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Mon Sep 4 15:00:02 2023 Here are the earthquakes appearing on this map, most recent at top ...Sep 4, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Mon Sep 4 10:00:04 2023 Here are the earthquakes appearing on this map, most recent at top ... USGS Magnitude 2.5+ Earthquakes, Past Day. 2.5. 28 km NW of Susitna, Alaska. 2023-09-04 22:00:11 (UTC-07:00) 52.0 km. 3.7. 83 km NNE of Cruz Bay, U.S. Virgin Islands. 2023-09-04 21:50:36 (UTC-07:00) 14.0 km. Latest Earthquakes. 2.6. 16 km SW of Toms Place, CA. 2023-08-28 08:16:35 (UTC-07:00) 2.7 km. 2.7. 6 km ENE of Round Valley, CA. 2023-08-25 06:37:33 (UTC-07:00) 7.9 km.Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 08:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ... If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds . If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Riverside has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 6 earthquakes in the past 7 days. 40 earthquakes in the past 30 days. 577 earthquakes in the past 365 days.Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 21:00:00 2023 Here are the earthquakes appearing on this map, most recent at top ...Jul 15, 2023 · Earthquake Hazards Program. The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. We undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP), a four-agency partnership established by Congress. Sep 5, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 01:00:04 2023 Here are the earthquakes appearing on this map, most recent at top ... San Diego has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 4 earthquakes in the past 7 days. 16 earthquakes in the past 30 days. 162 earthquakes in the past 365 days.Southern California has had: (M1.5 or greater) 5 earthquakes in the past 24 hours. 40 earthquakes in the past 7 days. 337 earthquakes in the past 30 days. 2,494 earthquakes in the past 365 days.The Latest Earthquakes application supports most recent browsers, view supported browsers. If the application does not load, try our legacy Latest Earthquakes application.Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Mon Sep 4 19:00:00 2023 Here are the earthquakes appearing on this map, most recent at top ...USGS Magnitude 2.5+ Earthquakes, Past Day. 2.5. 28 km NW of Susitna, Alaska. 2023-09-04 22:00:11 (UTC-07:00) 52.0 km. 3.7. 83 km NNE of Cruz Bay, U.S. Virgin Islands. 2023-09-04 21:50:36 (UTC-07:00) 14.0 km. There have been: (M1.5 or greater) 91 earthquakes in the past 24 hours. 851 earthquakes in the past 7 days. 3,594 earthquakes in the past 30 days. 52,362 earthquakes in the past 365 days. California, United States has had: (M1.5 or greater) 25 earthquakes in the past 24 hours. 140 earthquakes in the past 7 days. 735 earthquakes in the past 30 days. 7,592 earthquakes in the past 365 days. Legend. Earthquakes are shown as circles sized by magnitude (red, < 1 hour; blue, < 1 day, yellow, < 1 week). Click or tap on a circle to view more details about an earthquake, such as location, date/time, magnitude, and links to more information about the quake. Local time is the time of the earthquake in your computer's time zone.San Leandro has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 5 earthquakes in the past 7 days. 26 earthquakes in the past 30 days. 399 earthquakes in the past 365 days. Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for a zoomed-in view. Map Information. How do earthquakes get on these maps? Search Earthquakes Near You (Relative2Me). Map Frequently Asked Questions (FAQ) Brown lines are known hazardous faults and fault zones. Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 04:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ... Recent Earthquakes in California and Nevada. Did you feel it? - Click Here. Click on an earthquake on the above map for a zoomed-in view. Magnitude = ? for new earthquakes until a magnitude is determined (takes 4-5 minutes). Maps are updated within 1-5 minutes of an earthquake or once an hour.List of Notable and Major California Earthquakes California's Earthquake History. Although earlier earthquakes have been documented—such as significant movement on the southern San Andreas fault all the way back to the 1600s—the earliest reported earthquake in California was on July 28, 1769, noted by members of a Spanish expedition to chart a land route from San Diego to Monterey. San Diego has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 4 earthquakes in the past 7 days. 16 earthquakes in the past 30 days. 162 earthquakes in the past 365 days.Oroville East has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 0 earthquakes in the past 7 days. 3 earthquakes in the past 30 days. 77 earthquakes in the past 365 days.Recent Earthquakes. Monthly Commentaries on So. Cal seismicity. Click on image for selected historic California earthquake photos. Photo credits: (1) Arnold Genthe, Steinbrugge Collection of the UC Berkeley Earthquake Engineering Research Center; (2) Bulletin of the Seismological Society of America (3) Portland Cement Association; (4) Bolt ...Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 22:00:02 2023 Here are the earthquakes appearing on this map, most recent at top ...For northern California, the potential sources of earthquakes larger than magnitude 6 are documented in Open-File Report 96-705: Database of Potential Sources for Earthquakes Larger than Magnitude 6 in Northern California by the Working Group on Northern California Earthquake Potential (chaired by Jim Lienkaemper).Largest earthquakes, significant events, lists and maps by magnitude, by year, or by location. Compilations of information about significant earthquakes, swarms or sequences, and fault zones of interest. USGS and non-USGS collections of earthquake-related features and effects and shaking damage.Sep 7, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 06:39:08 2023 Here are the earthquakes appearing on this map, most recent at top ... List of Notable and Major California Earthquakes California's Earthquake History. Although earlier earthquakes have been documented—such as significant movement on the southern San Andreas fault all the way back to the 1600s—the earliest reported earthquake in California was on July 28, 1769, noted by members of a Spanish expedition to chart a land route from San Diego to Monterey. Los Angeles has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 5 earthquakes in the past 7 days. 28 earthquakes in the past 30 days. 312 earthquakes in the past 365 days.There have been: (M1.5 or greater) 91 earthquakes in the past 24 hours. 851 earthquakes in the past 7 days. 3,594 earthquakes in the past 30 days. 52,362 earthquakes in the past 365 days. Sep 7, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 07:06:50 2023 Here are the earthquakes appearing on this map, most recent at top ... Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 08:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ...Dec 20, 2022 · Earthquake damage is seen at the Humboldt Creamery building in Loleta, Calif., Tuesday, Dec. 20, 2022. A strong earthquake shook a rural stretch of Northern California early Tuesday, jolting ... An average of 234 earthquakes with magnitudes between 3.0 and 4.0 occur each year in California and Nevada, according to a recent three-year data sample. The earthquake occurred at a depth of 11.1 ...Sep 7, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 07:06:50 2023 Here are the earthquakes appearing on this map, most recent at top ... Sep 5, 2023 · Recent Earthquakes in California and Nevada San Francisco Special Map. Click on an earthquake on the above map for more information. Update time = Wed Sep 6 09:00:01 2023 Riverside has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 6 earthquakes in the past 7 days. 40 earthquakes in the past 30 days. 577 earthquakes in the past 365 days. If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds . Caltech Seismological Laboratory. Earthquake Country Alliance. USGS Earthquake Science Center - Menlo Park. California Geological Survey. Redwood City Public Seismic Network. Southern California Earthquake Center (SCEC) - funded by NSF and USGS. Southern California Earthquake Data Center (SCEDC) Rancho Cucamonga has had: (M1.5 or greater) 4 earthquakes in the past 24 hours. 9 earthquakes in the past 7 days. 40 earthquakes in the past 30 days. 461 earthquakes in the past 365 days.Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for a zoomed-in view. Map Information. How do earthquakes get on these maps? Search Earthquakes Near You (Relative2Me). Map Frequently Asked Questions (FAQ) Brown lines are known hazardous faults and fault zones.
If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds . . Atlas peat and soil inc
If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds . Earthquake damage is seen at the Humboldt Creamery building in Loleta, Calif., Tuesday, Dec. 20, 2022. A strong earthquake shook a rural stretch of Northern California early Tuesday, jolting ...Oregon, United States has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 5 earthquakes in the past 7 days. 33 earthquakes in the past 30 days. 407 earthquakes in the past 365 days.Dec 21, 2021 · A 6.2 magnitude earthquake off the coast of Northern California rattled a wide swath of the state shortly after noon local time, according to data from the US Geological Survey. The quake occurred ... Sep 6, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 21:00:00 2023 Here are the earthquakes appearing on this map, most recent at top ... Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Thu Sep 7 11:00:03 2023 Here are the earthquakes appearing on this map, most recent at top ...San Leandro has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 5 earthquakes in the past 7 days. 26 earthquakes in the past 30 days. 399 earthquakes in the past 365 days.Sep 5, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Tue Sep 5 01:00:04 2023 Here are the earthquakes appearing on this map, most recent at top ... If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Jan 2, 2023 · The New Year's Day earthquake, with a preliminary magnitude of 5.4, struck about 9 miles southeast of Rio Dell in Humboldt County just after 10:30 a.m. local time (1:35 p.m. ET) Sunday, according ... Sep 1, 2023 · Recent Earthquakes in California and Nevada. Click on an earthquake on the above map for more information. Click on an arrow at edge or corner of above map to go to an adjacent map. Update time = Wed Sep 6 11:07:34 2023 Here are the earthquakes appearing on this map, most recent at top ... If the application does not load, try our legacy Latest Earthquakes application. Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds .Recent Earthquakes. Monthly Commentaries on So. Cal seismicity. Click on image for selected historic California earthquake photos. Photo credits: (1) Arnold Genthe, Steinbrugge Collection of the UC Berkeley Earthquake Engineering Research Center; (2) Bulletin of the Seismological Society of America (3) Portland Cement Association; (4) Bolt ....