Note: The map shows the area with a tremor magnitude of 4 or greater, which the USGS defines as “mild,” although the earthquake can be felt outside the areas shown. New York Times
A 7.4-magnitude earthquake struck the Philippine Sea on Friday, according to the US Geological Survey.
Agency data show that the quake occurred at 9:43 a.m. Philippine time, about 12 miles east of Santiago, Philippines.
As seismologists review available data, they may revise the magnitude of the reported earthquake. Additional information collected about the quake may also prompt USGS scientists to update the tremor intensity map.
Aftershocks in the area
An aftershock is usually a smaller earthquake that follows a larger earthquake in the same general area. Aftershocks are usually minor adjustments along a portion of a fault that slipped at the time of the initial earthquake.
Earthquakes and aftershocks within 100 miles
Aftershocks can occur days, weeks, or even years after the first earthquake. These events can be equal to or larger in magnitude than the initial earthquake, and can continue to affect already damaged locations.
When earthquakes and aftershocks occurred
Source: United States Geological Survey | Notes: Vibration classes depend on Modified Mercalli density size. When aftershock data is available, the corresponding maps and graphs include earthquakes occurring within 100 miles and seven days of the initial quake. All times listed above are Philippine time. Vibration data as of Thursday, October 9 at 9:56 PM ET. Aftershock data as of Thursday, October 9 at 11:30 PM ET.
Maps: daylight (urban areas); MapLibre(map display); physical terrain (roads, nomenclature, topography); Raw maps (map tiles)
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