SGER: Coral uplift associated with the Sumatran earthquakes of September 2007

这份SGER建议是为了支付2007年9月8.4级和7.9级地震引起的帕盖和西波拉群岛周围沿海隆起的调查费用。那里发生了显著的隆起，隆起的波利特岛远远高于海平面(几个典型的几十厘米，局部超过1米)。众所周知，这些头部在退潮时靠近海平面(在厘米以内)生长，它们的重新融合因此提供了对同震抬升的测量(并对潮汐效应进行了适当的校正)。这项研究将为苏门答腊岛大地震的特征提供重要的线索，对苏门答腊岛具有直接的社会意义。巴东(超过100万居民)暴露在8.5级海啸地震的危险之中。这项研究将与我们的印尼合作伙伴合作进行，并将为研究生提供关键数据。

This SGER proposal is requested to cover the cost of surveying coastal uplift around thePagai and Sipora islands related to the M8.4 and 7.9 earthquakes of September 2007.Significant uplift has occurred there, rising porites heads well above the sea level (severaltens of centimeters typically and locally more than 1 meter). These heads are known togrow close (within centimeters) to the sea level at the time of the low tides and theiremergence thus provides a measurement of co-seismic uplift (with appropriate correctionfor tidal effects). This data set will provide exceptional constraints, in addition to theexisting SUGAR GPS measurements, on the co-slip on the megathrust.This research will shed important light on the characteristics of large megathrustearthquakes, with direct societal implication for Sumatra, where Padang (over 1 millioninhabitants) is exposed to the risk of a M8.5 tsunamigenic earthquake. This researchwill be conducted in collaboration with our Indonesian partners and will provide key datafor graduate students.