Results

Figure 13.19: reasult for the Bolivia earthquake(Top right)slip distribution, (Top left)static stress distribution (bottom)possible temperature rise during the rupture.
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Figure 2 shows the slip distribution, static stress change and posible temperature rise during the Bolivia earthquake. For the Bolivia earthquake, the source time function shows a large moment release 15 sec after initiation and as a result, the largest offset is not in the hypocenter region. The maximum stress change was 400Mpa, and the average stress was 21Mpa at the main rupture area, which is consistent with the result of static stress drop estimates (Bouchon and Ihmle, 1999). Using the stress distribution, we compute the possible temperature rise at each subfault. Taking into acount the rock melting temperature of around 600 degrees, we found during the Bolivia earthquake, that melting likely occured. The Fiji earthquake showed a factor of ten lower in temperature, but still was high enough to melt the srrounding rocks.

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