Seismic activity that rattled the Indonesian region early this week, including a quake that measured a whopping magnitude 8.7, was triggered by December’s massive, tsunami-spawning earthquake, scientists suggest.
SHOCKED. Epicenters of Monday’s magnitude-8.7 quake (red star) and some of its aftershocks (red dots) lie southeast of December’s temblor (yellow star). Portions of undersea fault zones that ruptured during tsunami-generating quakes of 2004 and 1861 are shown in green and pink, respectively.
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