Very strong mag. 6.4 earthquake - Philippine Sea, 10.4 km northeast of Masbate, Bicol, Philippines, on Sunday, July 25, 1971 at 12:51 (GMT)
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Very strong magnitude 6.4 earthquake at 40 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 40.0 km
Epicenter latitude / longitude: 12.439°N / 123.691°E↗ (Philippine Sea, Philippines)
Antipode: 12.439°S / 56.309°W↗
Nearest volcano: Gate Mountains (38 km / 24 mi)
Nearby towns and cities:
9 km (6 mi) WSW of San Fernando (Masbate) (pop: 6,210) --> See nearby quakes!
10 km (6 mi) NE of Masbate (pop: 47,500) --> See nearby quakes!
33 km (20 mi) SW of Bulan (Sorsogon) (pop: 28,500) --> See nearby quakes!
47 km (29 mi) SW of Irosin (pop: 20,700) --> See nearby quakes!
68 km (42 mi) SSW of Sorsogon (pop: 82,700) --> See nearby quakes!
78 km (49 mi) S of Legazpi (pop: 179,500) --> See nearby quakes!
97 km (61 mi) SSE of Polangui (pop: 77,100) --> See nearby quakes!
100 km (62 mi) SSE of Libon (pop: 68,800) --> See nearby quakes!
213 km (132 mi) NNE of Bacolod City (pop: 454,900) --> See nearby quakes!
379 km (236 mi) SE of Manila (pop: 1,600,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
|6.4||40 km||Masbate region, Philippines||USGS|
User reports for this quake
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Recorded aftershocks, latest first (0 quakes)
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