Very strong mag. 6.1 earthquake - Philippine Sea, 30 km east of Masbate, Bicol, Philippines, on Friday, July 2, 1971 at 05:34 (GMT)
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Very strong magnitude 6.1 earthquake at 25 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 25.0 km
Epicenter latitude / longitude: 12.36°N / 123.899°E↗ (Philippine Sea, Philippines)
Antipode: 12.36°S / 56.101°W↗
Nearest volcano: Gate Mountains (29 km / 18 mi)
Nearby towns and cities:
20 km (12 mi) NE of Uson (pop: 4,400) --> See nearby quakes!
30 km (19 mi) E of Masbate (pop: 47,500) --> See nearby quakes!
35 km (22 mi) S of Bulan (Sorsogon) (pop: 28,500) --> See nearby quakes!
41 km (25 mi) SSW of Irosin (pop: 20,700) --> See nearby quakes!
69 km (43 mi) S of Sorsogon (pop: 82,700) --> See nearby quakes!
82 km (51 mi) W of Catarman (pop: 47,400) --> See nearby quakes!
83 km (51 mi) WNW of Calbayog City (pop: 67,900) --> See nearby quakes!
89 km (55 mi) SSE of Legazpi (pop: 179,500) --> See nearby quakes!
215 km (134 mi) NNE of Bacolod City (pop: 454,900) --> See nearby quakes!
402 km (250 mi) SE of Manila (pop: 1,600,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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.
|6.1||25 km||Masbate region, Philippines||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Recorded aftershocks, latest first (1 quake)
|Date and time||Mag|
|Jul 25, 1971 12:51|
50 years ago
|Philippine Sea, 10.4 km NE of Masbate, Bicol, Philippines||More|