Abstract

Maximum expected earthquake magnitude is an important parameter when designing mitigation measures for seismic hazards. This study calculated the maximum magnitude of potential earthquakes for each cell in a 0.1° × 0.1° grid of Taiwan. Two zones vulnerable to maximum magnitudes of M w ≥6.0, which will cause extensive building damage, were identified: one extends from Hsinchu southward to Taichung, Nantou, Chiayi, and Tainan in western Taiwan; the other extends from Ilan southward to Hualian and Taitung in eastern Taiwan. These zones are also characterized by low b values, which are consistent with high peak ground shaking. We also employed an innovative method to calculate (at intervals of M w 0.5) the bounds and median of recurrence time for earthquakes of magnitude M w 6.0–8.0 in Taiwan.

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