Message-Id: Date: Mon, 4 Nov 2002 09:41:43 -0800 To: igsmail@igscb.jpl.nasa.gov From: Geoff Blewitt (by way of Ruth E. Neilan) Subject: [IGSMAIL-4141]: Advisory: Co-seismic displacement of FAIR Cc: Angelyn.W.Moore@jpl.nasa.gov Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 04 Nov 09:41:41 PST 2002 Message Number 4141 ****************************************************************************** Author: Geoff Blewitt Subject: FAIR ****************************************************************************** IGSCB Electronic Mail 04 Nov 08:17:44 PST 2002 Message Number 8485 ****************************************************************************** Author: Geoff Blewitt 2002/11/03 22:12 M 7.9 CENTRAL ALASKA Z= 10km 63.74N 147.69W This is an advisory to warn users of IGS data (including IGS Analysis Centers) that the IGS station FAIR is expected to have significant co-seismic displacement due to a magnitude 7.9 earthquake which occurred at 2002/11/03 22:12:40 UTC, centered approximately 120 km south of Fairbanks, Alaska. Post-seismic motion might also be expected. More information on the earthquake is given below from the USGS. For purposes of IGS orbit determination, I suggest that data from FAIR on UTC day 2002/11/03 not be processed from 22:00 to the end of the day. I would also recommend not using FAIR for transformations of fiducial-free solutions into ITRF2000. This is sent as an early warning for informational purposes only - the Analysis Coordinator no doubt will recommend a course of action. Geoff ________________________________ Geoff Blewitt-Research Professor www.nbmg.unr.edu/staff/geoff.htm Nevada Bureau of Mines & Geology and Seismological Laboratory University of Nevada, Reno Mail Stop 178 Reno, NV 89557-0088 (775)784-6691 x171 fax (775)784-1709 gblewitt@unr.edu ---------- Forwarded message ---------- Date: Sun, 3 Nov 2002 15:47:24 -0700 (MST) From: Do_Not_Reply@gldmutt.cr.usgs.gov To: undisclosed-recipients: ; Subject: 2002/11/03 22:12 M 7.9 CENTRAL ALASKA Z= 10km 63.74N 147.69W 2002/11/03 22:12 M 7.9 CENTRAL ALASKA Z= 10km 63.74N 147.69W This information is provided by the USGS National Earthquake Information Center. (Address problems to: sedas@ghtmail.cr.usgs.gov) These parameters are preliminary and subject to revision. A magnitude 7.9 earthquake IN CENTRAL ALASKA has occurred at: 63.74N 147.69W Depth 10km Sun Nov 3 22:12:40 2002 UTC Time: Universal Time (UTC) Sun Nov 3 22:12:40 2002 Time Near Epicenter Sun Nov 3 13:12:40 2002 Eastern Standard Time (EST) Sun Nov 3 17:12:40 2002 Central Standard Time (CST) Sun Nov 3 16:12:40 2002 Mountain Standard Time (MST) Sun Nov 3 15:12:40 2002 Pacific Standard Time (PST) Sun Nov 3 14:12:40 2002 Alaska Standard Time (AST) Sun Nov 3 13:12:40 2002 Hawaii Standard Time (HST) Sun Nov 3 12:12:40 2002 Location with respect to nearby cities: 40 miles (65 km) E of Healy, Alaska (pop 1,000) 45 miles (75 km) ENE of Cantwell, Alaska (pop 200) 75 miles (120 km) S of Fairbanks, Alaska (pop 30,000) 580 miles (945 km) NW of JUNEAU, Alaska Flinn-Engdahl Region Number = 001 For the definition of Flinn-Engdahl regions, see: http://neic.usgs.gov/neis/epic/fer_explain.html . For additional information and subsequent updates, including associated information and maps please consult the following web page, which will be available shortly: http://neic.usgs.gov/neis/bulletin/neic_lbbl.html . For the most significant earthquakes, information may also be available from the USGS Earthquake Hazards Program home page at http://earthquake.usgs.gov/ and the USGS home page at http://www.usgs.gov/ . You will continue to receive messages like this when earthquakes occur that have magnitude 5.5 or greater anywhere in the world OR 4.5 or greater in the contiguous US, Hawaii, and Alaska (excluding the Aleutian Islands). The subscription form for this service is located at: http://neic.usgs.gov/neis/data_services/data_services.html If you do not wish to receive these messages, please visit that site, select "bigquake," enter your Email address, and select, "unsubscribe." -- U.S. Geological Survey -- Science for a Changing World