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Note: Map shows the area with a shake intensity of 3 or greater, which U.S.G.S. defines as “weak,” though the earthquake may be felt outside the areas shown.
All times on the map are Philippine time.
The New York Times
Moderately strong, 5.0-magnitude and 5.1-magnitude earthquakes struck in the Philippines on Wednesday, according to the United States Geological Survey.
The first temblor happened at 9:16 p.m. Philippine time about 2 miles northeast of Balangonan, Philippines, data from the agency shows.
As seismologists review available data, they may revise the earthquake’s reported magnitude. Additional information collected about the earthquake may also prompt U.S.G.S. scientists to update the shake-severity map.
Aftershocks detected
Subsequent quakes have been reported in the same area. Such temblors are typically aftershocks caused by minor adjustments along the portion of a fault that slipped at the time of the initial earthquake.
Quakes and aftershocks within 100 miles
Aftershocks can occur days, weeks or even years after the first earthquake. These events can be of equal or larger magnitude to the initial earthquake, and they can continue to affect already damaged locations.
When quakes and aftershocks occurred
All times are Philippine time.
The New York Times
Sources: United States Geological Survey (epicenter, aftershocks, shake intensity); LandScan via Oak Ridge National Laboratory (population density) | Notes: Shaking categories are based on the Modified Mercalli Intensity scale. When aftershock data is available, the corresponding maps and charts include earthquakes within 100 miles and seven days of the initial quake. All times above are Philippine time. Shake data is as of Wednesday, July 29 at 9:42 a.m. Eastern. Aftershocks data is as of Wednesday, July 29 at 11:17 a.m. Eastern.
