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Date/Time: 1983/10/28 14:6:9.72
Lat: 44.086 Long: -113.805
Region: Borah Peak, Idaho, USA
M 7.0 [gsx] Mw 7.0 [hrv]
Mw 6.9 GS Mw 7.0 [p&s]
Depth: 16 km
Deaths: 2 Injuries: 2
Catalog Source: ehb
This earthquake caused two deaths in Challis, about 200 kilometers northeast of Boise, and an estimated $12.5 million in damage in the Challis-Mackay area. Spectacular surface faulting was associated with this earthquake - a 34-kilometer-long northwest-trending zone of fresh scarps and ground breakage on the southwest slope of the Lost River Range. The most extensive breakage occurred along the 8-kilometer zone between West Spring and Cedar Creek. Here, the ground surface was shattered into randomly tilted blocks several meters in width.
At Mackay, about 80 kilometers southeast of Challis, most of the commercial structures on Main Street were damaged to some extent; building inspectors condemned eight of them. Damaged buildings were mainly of masonry construction, including brick, concrete block, or stone. Visible damage consisted of severe cracking or partial collapse of exterior walls, cracking of interior walls, and separation of ceilings and walls at connecting corners. About 90 percent of the residential chimneys were cracked, twisted, or collapsed.
At Challis, less damage to buildings and chimneys was sustained, but two structures were damaged extensively: the Challis High School and a vacant concrete-block building (100 years old) on Main Street. Many aftershocks occurred through 1983. Also felt in parts in Montana, Nevada, Oregon, Utah, Washington, Wyoming, and in the Provinces of Alberta, British Columbia, and Saskatchewan, Canada.
Data file downloaded 001233
Bad lines encountered: 0
Additions to database: 32
Corrections to records: 128
Count of lines: 1098
Magnitude 6+ earthquakes downgraded: 1
Magnitude 5 or 6+ earthquakes upgraded: 0
us|b000bv81|?|Sunday, August 12, 2012 10:47:06 UTC|35.66|82.518|6.2|13|?|282km SE of Hotan, China
Log closed 001240
2012-08-12 10:47:06, 35.660, 82.518, 6.2, 13.0, Xinjiang-Xizang Border Region [Map]
Date: 2012/ 8/12 Centroid Time: 10:47:15.9 GMT
Lat= 35.93 Lon= 82.56
Depth= 17.9 Half duration= 3.1
Centroid time minus hypocenter time: 9.7
Moment Tensor: Expo=25 -2.200 -0.657 2.860 0.095 -0.548 0.592
Mw = 6.2 mb = 0.0 Ms = 6.3 Scalar Moment = 2.64e+25
Fault plane: strike=197 dip=40 slip=-79
Fault plane: strike=3 dip=51 slip=-99
I thought GCMT would be better bet than UGS, and give a definitive magnitude, but in fact all it does is raise more questions
Originally posted by tracehd1
Dept. of interior gives news conference on va quake and?
2012 8 24 11 6 48.0 -61.75 153.75 33.0 5.2 BALLENY ISLANDS REGION
2012 8 24 10 2 0.0 -33.25 -179.25 33.0 5.6 SOUTH OF KERMADEC ISLANDS
2012 8 24 7 3 12.0 -63.75 170.75 33.0 5.5 BALLENY ISLANDS REGION
2012 8 22 11 13 28.0 -62.75 -158.75 33.0 5.1 PACIFIC-ANTARCTIC RIDGE
2012 8 21 6 28 24.0 -56.25 -144.75 33.0 4.9 PACIFIC-ANTARCTIC RIDGE
If you're a user of GeoNet recent earthquakes web services then it's time to start updating your code to use the new web services from GeoNet Rapid. We are aiming to put GeoNet Rapid into full production in early September 2012. At this time the web services currently available on www.geonet.org.nz will be replaced by those from GeoNet Rapid.
You can either wait until after GeoNet Rapid goes live in September or start using the new services now. When GeoNet Rapid goes live and replaces the content at www.geonet.org.nz we will keep the beta.geonet.org.nz CNAME pointing at www.geonet.org.nz to give users a chance to change their code from using beta.geonet.org.nz to www.geonet.org.nz.
You can learn more about the new services here:
This does not affect earthquake web services provided by magma.geonet.org.nz producing output in QuakeML and KML. These will continue to provide access to the catalogue of New Zealand earthquakes. The catalogue is currently being finalised for all earthquakes up until December 31 2011 (including a backlog period from 2008 and the mainshock sequences for Dusky Sound 2009 and Darfield 2010). We hope to have this work completed early in 2013. A catalogue produced by our new earthquake location system SeisComP3 will cover earthquakes occurring after January 1 2012.
The catalogue is currently being finalised for all earthquakes up until December 31 2011 (including a backlog period from 2008 and the mainshock sequences for Dusky Sound 2009 and Darfield 2010)