GSW's Geology program is currently being phased out and is no longer accepting new majors.
Seismic Detectors and Computer Interface
Digital Display in Roney Building
Older Paper Seismic Recorder
Most Recent Seismic Event Recorded at GSW
USGS & Regional Seismic Information
Seismic Events Recorded at GSW
- Philippines Region, March 3 2008, 6.9 Mw
- Kuril Islands, Japan Region - March 3, 2008, 6.5 Mw
- Andreanof-Islands, Aluetians - March 2, 2008, 5.8 Mw
- Tarapac, Chile - March 1, 2008, 5.7 Mw, 36 km deep
- Nevada - February 21, 2008, 6.0 Mw
- Svalbard Region - February 21, 2008, 6.2 Mw
- Gulf of California - March 13, 2007, 6.0 Mw, 42 km deep
- South of Cuba - February 4, 2007, 6.2 Mw
- Molucca Sea - January 21, 2007, 7.5 Mw, 38 km deep
- Kuril Islands - January 13, 2007, 8.1 Mw
- Kuril Islands - November 15, 2006, 8.3 Mw
- Hawaii - October 15, 2006, 6.6 Mw, 38 km deep
- Gulf of Mexico - September 10, 2006, 5.8 Mw
- Salta, Argentina - August 25, 2006, 6.6 Mw, 156 km depth
- Kamchatka, Russia - August 24, 2006, 6.5 Mw, 43 km depth
- Scotia Sea - August 20, 2006, 7.0 Mw
- Oaxaca, Mexico - August 19, 2006, 5.6 Mw
- Virgin Islands - August 14, 2006, 5.5 Mb
- Michoacan, Mexico - August 11, 2006, 6.1 & 5.2 Mw
- Vanuatu, South Pacific - August 7, 2006, 6.8 Mw, 151 km depth
- Gulf of California - July 30, 2006, 5.9 Mw
- North Atlantic Ocean - July 29, 2006, 5.8 Mw
- South of Java, Indonesia, July 17, 2006, 7.7 Mw
- Andreanof Islands, Alaska - July 7, 2006, 6.6 Mw, 51 km depth
- Tonga - May 3, 2006, 7.9 Mw, 55 km deep
- Koryakia, Russia - April 20, 2006, 7.6 Mw
- Jalisco, Mexico - April 4, 2006, 5.9 Mw
- Seram, Indonesia - March 14, 2006, 6.7 Mw
- Mozambique - February 22, 2006, 7.5 Mw
- Gulf of Mexico - February 10, 2006, 5.2 Mb
- Gulf of California - January 4, 2006, 6.6 Mw
- Offshore Fiji - January 2, 2006, 7.2 Mw, 582 km deep
- Lake Tanganyika, Africa - December 5, 2005, 6.8 Mw
- Offshore Honshu Japan - November 14, 2005, 6.9 Mw
- Northern Pakistan - October 8, 2005, 7.6 Mw
- Offshore Honduras - September 23, 2005, 5.9 Mw
- Panama - September 18, 2005, 5.6 Mw
- Panama - September 18, 2005, 5.5 Mw
- Southern California - September 2, 2005, 4.5 & 5.1 Mw
- Panama - August 27, 2005, 6.0 Mw
- Western North Carolina - August 25, 2005, 3.7 Mb
- Offshore Honshu Japan - August 16, 2004, 7.2 Mw
- Nicaragua - August 3 2005, 6.3 Mw
- Western Montana - July 26 2005, 5.5 Mw
- Nicobar Islands, Indonesia - July 24 2005, 7.3 Mw
- Offshore Northern California - June 15 2005, 7.1 Mw
- Northern Sumatra - March 28, 2005, 8.6 Mw
- Gulf of California - February 22, 2005, 5.5 Magnitude
- Central Iran - February 22, 2005, 6.3 Mw
- Sulawesi, Indonesia - February 19, 2005, 6.5 Mw
- Offshore Ecuador - February 17, 2005, 5.5 Mw
- Kepulauan Island, Indonesia - February 15, 2005, 6.4 Mw
- Leeward Islands - February 14, 2005, 5.9 Mw
- Arkansas - February 10, 2005, Magnitude 4.1
- Vanuatu - February 8, 2005, Magnitude 6.7 Mw, (Depth 206.4 km)
Notable Seismic Events Recorded at GSW Since 1998
- Nicaragua -- October 9, 2004, 7.1 Mw (Depth 61.1 km)
- South Coast of Honshu, Japan - September 5, 2004, 7.0 and 7.4 Mw
- Hokkaido, Japan - September 25, 2003, 8.1 Mw
- Central Chile - June 20, 2003, 6.8 Mw
- Amazonas, Brazil - June 20, 2003, Magnitude 7.0 Mw (Depth 553 km)
- Mindanao, Philippines - May 26, 2003, Magnitude 6.8 Mw (Depth 560 km)
- Halmahera, Indonesia - May 26, 2003, Magnitude 6.7 Mw
- Honshu, Japan - May 26, 2003, Magnitude 7.0 Mw
- near Fort Payne, Alabama - April 29, 2003, Magnitude 4.9
- near Athens, Georgia - March 18, 2003, Magnitude 3.5
- Rat Islands, Alaska - March 17, 2003, Magnitude 7.0 Mw
- Colima, Mexico - January 22, 2003, Magnitude 7.8 Mw
- Kuril Islands - November 17, 2002, Magnitude 7.3 Mw (Depth 507 km)
- Central Alaska - November 3, 2002, Magnitude 7.9 Mw
- Central Alaska - October 23, 2002, Magnitude 6.7 Mw
- Western Brazil - October 12, 2002, Magnitude 6.4 (Depth 536 km)
- Oaxaca, Mexico - October 11, 2002, Magnitude 5.2
- Irian Jaya Region, Indonesia - October 10, 2002, Magnitude 7.4 Mw
- Gulf of California - October 3, 2002, Magnitude 6.4 Mw
- Papua New Guinea - September 8, 2002, Magnitude 7.5 (7.3 Mw)
- China - June 28, 2002, Magnitude 7.3 (depth 564 km)
- Offshore Sumatra - June 27, 2002, Magnitude 6.6
- Guatemala - June 25, 2002, Magnitude 5.0 (depth 70 km)
- Western Iran - June 22, 2002, Magnitude 6.3
- SW Indiana - June 18, 2002, Magnitude 5.0
- Chile - June 18, 2002, Magnitude 6.6 (depth 53 km)
- Upstate New York - April 20, 2002, Magnitude 5.1
- Near Guerrero, Mexico - April 18, 2002, Magnitude 5.0 mb
- Northern Chile - April 18, 2002, Magnitude 6.7 Mw
- Near Guerrero, Mexico - April 18, 2002, Magnitude 6.3 Mw
- Chiapas, Mexico - April 13, 2002, Magnitude 4.9
- Hindu-Kush Region, Afhanistan - April 12, 2002, Magnitude 5.9 Ms
- Vanuatu Islands, South Pacific - April 11, 2002, Magnitude 6.2 Ms
- Puerto Rico - April 11, 2002, Magnitude 4.6 mb (depth 56 km)
- Chile-Bolivia Border Region - March 28, 2002, Magnitude 6.3 (depth 122 km)
- Gulf of California - March 27, 2002, Magnitude 4.7
- Ryukyu Islands, Japan - March 26, 2002, Magnitude 6.4
- Aleutian Islands, Alaska - March 14, 2002, Magnitude 5.9 Mw
- Panama - March 14, 2002, Magnitude 4.1
- El Salvador - March 7, 2002, Magnitude 4.8
- Mindanao, Phillipines - March 3, 2002, Magnitude 7.5
- Hindu-Kush Region, Afghanistan - March 3, 2002, Magnitude 7.3 (depth 195 km)
- Near Baja California, Mexico - February 22, 2002, Magnitude 5.2
- Chiapas, Mexico - February 14, 2002, Magnitude 5.8
- Veracruz, Mexico - January 30, 2002, Magnitude 5.5 (depth 105 km)
- Vanuatu Islands, South Pacific - January 2, 2002, Magnitude 7.3, 6.4 Mw
- Off East Coast of U.S.A. - January 12, 2002, Magnitude 5.7
- Chiapas, Mexico - January 16, 2002, Magnitude 6.4
- Costa Rica - January 28, 2002, Magnitude 5.2
- South of Australia - December 12, 2001, magnitude 7.0
- Alabama - December 8, 2001, magnitude 3.9
- China - November 14, 2001, magnitude 6.2 mb, 8.1 Ms
- Mexico - November 13, 2001, magnitudes 5.7 & 4.9
- Banda Sea, South Pacific - October 19, 2001, magnitude 7.5
- Virgin Islands - October 16, 2001, magnitude 5.7 MS
- South of the Marianas Islands - October 12, 2001, magnitude 7.0
- Seattle, Washington - February 28, 2001, magnitude 6.8 Ms
- El Salvador - February 13, 2001, magnitude 6.6 Mw
- Western India - January 26, 2001, magnitude 7.9 MS
- El Salvador - January 13, 2001, magnitude 7.6 MS
- Putnam County, Georgia (near Milledgeville)- January 18, 2000, magnitude 3.5 MS
- Istanbul, Turkey - November 12, 1999, magnitude 7.1 MS
- Mojave Desert, California - October 16, 1999, magnitude 7.0 MS - Vertical Component
- Mojave Desert, California - October 16, 1999, magnitude 7.0 MS - North-South Component
- Mojave Desert, California - October 16, 1999, magnitude 7.0 MS - East-West Component
- Oaxaca, Mexico - September 30, 1999, magnitude 7.5 MS
- Taiwan - September 20, 1999, magnitude 7.6 MS
- Northern Turkey - August 17, 1999, magnitude 7.8 MS
- Coastal Ecuador - Aug. 8, 1998 magnitude 7.1.MS