- Most Recent Earthquake
- Special Activity
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Earthquake swarms north of Blanco Transform Fault and on Gorda Ridge, 2008
- 4 March, 2006, Siletz, Oregon Earthquake, Mw=3.8, 43 km depth
- Gorda Ridge Eruption, April, 2001
- 28 February, 2001, Nisqually, WA Earthquake, Mw=6.8
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Axial Seamount, Juan de Fuca Ridge, January, 1998
- Moment-Tensor Catalogue
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1998
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1997
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1996
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1995
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1994
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1990-1993 (incomplete)
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Regional Broadband Seismic Stations
- Related Information on Other
Web-Servers
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Seismo-surfing the InterNet
- NOAA Vents Program:
SOSUS T-Phase Monitoring
- Pacific Northwest
Seismograph Network
- UC
Berkeley Seismographic Station
- US
National Seismograph Network
- Pacific
Geoscience Centre, Sidney, British Columbia
- Canadian National Seismograph
Network
- Northern California Earthquake
Data Center
- USGS, recent CA&NEV
earthquakes
- Humboldt State University
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From January, 1994 to September, 1998 we provided moment-tensor solutions for magnitude
greater or equal 4.0 earthquakes in the Pacific Northwest region using
regionally recorded broadband seismograms. Quarterly summaries for this time period are included in the Pacific Northwest Regional
Seismic Network reports.
Curretly, we are continuing moment-tensor research for the Juan de Fuca plate with funding from the National Science Foundation.
Background:
The method is described in Nabelek and Xia,
Geophysical Research Letters, 22, 13-16, 1995 with an application to
the 1993 Scotts Mills, Oregon earthquake. The 1993 Klamath Falls, Oregon
earthquake sequence is described in Braunmiller et al., Geophysical
Research Letters, 22, 105-108, 1995.
Other Publications:
Braunmiller, J., B. Leitner, J. Nabelek, and A. M. Trehu, Location and source parameters of the 19 June 1994 (Mw = 5.0) offshore Petrolia, California, earthquake, Bull. Seis. Soc. Am., 87, 272-276, 1997.
Johnson, H.P., M.A. Hutnak, R.P. Dziak, C.G. Fox, I. Urcuyo, C. Fisher, J.P. Cowen, and J. Nabelek, Earthquake-Induced Changes in a Hydrothermal System at the Endeavour Segment, Juan de Fuca Ridge, Nature, 407, 174-177, 2000.
Dziak, R.P., C.G. Fox, R.W. Embley, J.L. Nabelek, J. Braunmiller, and R.A. Koski. Recent Tectonics of the Blanco Ridge, Eastern Blanco Transform Fault Zone, Mar. Geophys. Res., 21 (5), 423-450, 2000.
Braunmiller, J., and J. Nabelek, Seismotectonics of the Explorer region, J. Geophys. Res., 107, EGT 1-1 to EGT 1-25, 2002.
Braunmiller, J., and J. Nabelek, Segmentation of the Blanco Transform Fault Zone from earthquake analysis : Complex tectonics of an oceanic transform fault, J. Geophys. Res., 113, B07108, doi:10.1029/2007JB005213, 2008.
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