Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake

Details Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3604307u&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 4, CiteID L04307

Physics

Geophysics

1

Seismology: Earthquake Source Observations (1240), Tectonophysics: Dynamics And Mechanics Of Faulting (8004), Seismology: Earthquake Dynamics (1242), Mathematical Geophysics: Time Series Analysis (1872, 4277, 4475)

Scientific paper

We investigated the 2004 Parkfield earthquake using a multiscale slip inversion. The multiscale approach allows us to both focus on the details of the early stages of the rupture process, and to model the entire earthquake at a larger scale. Our model indicates that the Parkfield earthquake began with bilateral high-speed rupture with fast slip rate, up to 4 m/s, and fast propagation velocity of about 3.0 km/s. Rupture propagation to the southeast was arrested 3 s after onset, while propagation to the northwest continued, generated a large slip patch at ~5 s, and ceased within 10 s. A similar rapid initiation was observed for the 2004 mid-Niigata Prefecture, Japan, earthquake in a previous study. High-speed initial rupture suggests that large earthquakes may initiate and grow in the same way as small earthquakes, and that the final size is difficult to predict from the early stages of an earthquake.

Affiliated with

Also associated with

No associations

Rating

Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic high-speed rupture from the onset of the 2004 Parkfield, California, earthquake will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-917458