Very strong mag. 6.4 earthquake - Philippine Sea, 61 km southeast of Suklayin, Philippines, on Wednesday, August 28, 1968 at 20:42 (GMT)

Very strong mag. 6.4 earthquake - Philippine Sea, 61 km southeast of Suklayin, Philippines, on Wednesday, August 28, 1968 at 20:42 (GMT)

Very strong magnitude 6.4 earthquake at 20 km depth

Date & time: Aug 28, 1968 20:42:19 UTC
Magnitude: 6.4
Depth: 20.0 km
Epicenter latitude / longitude: 15.51°N / 122.058°E (Philippine Sea, Philippines)
Antipode: 15.51°S / 57.942°W
Nearest volcano: Malepunyo (109 km / 68 mi)
Nearby towns and cities:
94 km (58 mi) E of Laur (Nueva Ecija) (pop: 19,200) --> See nearby quakes!
99 km (61 mi) E of Bongabon (Nueva Ecija) (pop: 36,200) --> See nearby quakes!
117 km (73 mi) E of Cabanatuan City (pop: 220,300) --> See nearby quakes!
124 km (77 mi) NE of Rodriguez (pop: 134,400) --> See nearby quakes!
133 km (83 mi) NE of San Jose del Monte (pop: 357,800) --> See nearby quakes!
135 km (84 mi) NE of San Mateo (pop: 134,300) --> See nearby quakes!
144 km (90 mi) NE of Quezon City (pop: 2,761,700) --> See nearby quakes!
153 km (95 mi) NE of Manila (pop: 1,600,000) --> See nearby quakes!
157 km (97 mi) ENE of San Fernando City (pop: 251,200) --> See nearby quakes!
173 km (108 mi) NNE of Calamba (pop: 316,600) --> 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!) | about seismic energy
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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.
6.420 kmPhilippine Islands region (Philippines)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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Recorded aftershocks, latest first (1 quake)

Date and timeMag
Nov 22, 1968 08:59
53 years ago

35 km
Philippine Sea, 63 km E of Maddela, PhilippinesMore

Earlier earthquakes in the same area

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