Very strong mag. 6.3 earthquake - Philippine Sea, 75 km north of Catarman, Philippines, on Sunday, August 20, 1933 at 11:45 (GMT)
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Very strong magnitude 6.3 earthquake at 20 km depth
Depth: 20.0 km
Epicenter latitude / longitude: 13.149°N / 124.82°E (Philippine Sea, Philippines)
Antipode: 13.149°S / 55.18°W
Nearest volcano: Bulusan (94 km / 58 mi)
Nearby towns and cities:
59 km (37 mi) NNW of Cabodiongan (pop: 3,000) --> See nearby quakes!
66 km (41 mi) N of Pambujan (Northern Samar) (pop: 10,800) --> See nearby quakes!
68 km (42 mi) NNW of Laoang (Northern Samar) (pop: 16,700) --> See nearby quakes!
75 km (47 mi) NNE of Catarman (pop: 47,400) --> See nearby quakes!
80 km (49 mi) SE of Virac (Catanduanes) (pop: 15,100) --> See nearby quakes!
80 km (50 mi) ENE of Gubat (Sorsogon) (pop: 14,000) --> See nearby quakes!
92 km (57 mi) ENE of Sorsogon (pop: 82,700) --> See nearby quakes!
99 km (61 mi) ENE of Irosin (pop: 20,700) --> See nearby quakes!
117 km (73 mi) E of Legazpi (pop: 179,500) --> See nearby quakes!
445 km (276 mi) ESE of Manila (pop: 1,600,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 atomic bombs!) | about seismic energy
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.
|6.3||20 km||Catanduanes, 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 (0 quake)
So far, no aftershocks have been registered.