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A moment magnitude scale
The nearly coincident forms of the relations between seismic moment M_0 and the magnitudes M_L, M_S, and M_w imply a moment magnitude scale M = ⅔ log M_0 - 10.7 which is uniformly valid for 3 ≲ M_L ≲Expand
The energy release in great earthquakes
The conventional magnitude scale M suffers saturation when the rupture dimension of the earthquake exceeds the wavelength of the seismic waves used for the magnitude determination (usually 5–50 km).Expand
Moho depth variation in southern California from teleseismic receiver functions
The number of broadband three-component seismic stations in southern California has more than tripled recently. In this study we use the teleseismic receiver function technique to determine theExpand
Relationships between Peak Ground Acceleration, Peak Ground Velocity, and Modified Mercalli Intensity in California
We have developed regression relationships between Modified Mercalli Intensity (I mm ) and peak ground acceleration (PGA) and velocity (PGV) by comparing horizontal peak ground motions to observedExpand
The Great Sumatra-Andaman Earthquake of 26 December 2004
Tsunami and geodetic observations indicate that additional slow slip occurred in the north over a time scale of 50 minutes or longer, and fault slip of up to 15 meters occurred near Banda Aceh, Sumatra, but to the north, along the Nicobar and Andaman Islands, rapid slip was much smaller. Expand
Rupture Process of the 2004 Sumatra-Andaman Earthquake
The 26 December 2004 Sumatra-Andaman earthquake initiated slowly, with small slip and a slow rupture speed for the first 40 to 60 seconds. Then the rupture expanded at a speed of about 2.5 kilometersExpand
TriNet “ShakeMaps”: Rapid Generation of Peak Ground Motion and Intensity Maps for Earthquakes in Southern California
Rapid (3-5 minutes) generation of maps of instrumental ground-motion and shaking intensity is accomplished through advances in real-time seismographic data acquisition combined with newly developedExpand
Mechanism of tsunami earthquakes
The mechanism of the Aleutian islands earthquake of 1946 and the Sanriku earthquake of 1896 is studied on the basis of the data on seismic waves from 5 to 100 s and on tsunamis. These earthquakesExpand
The Potential for Earthquake Early Warning in Southern California
Using data from past earthquakes, it is shown that the ElarmS Earthquake Alarm System (ElarmS) could, with current TriNet instrumentation, issue a warning a few to tens of seconds ahead of damaging ground motion. Expand
Back-arc opening and the mode of subduction
Trench-arc systems (subduction zones) can be classified into two types depending on whether or not actively opening back-arc basins are associated with them. This suggests that subduction of anExpand