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Strong mag. 6.4 earthquake - Pulau Umang, 97 km southwest of Serang, Banten, Indonesia, on Tuesday, May 4, 1971 at 02:04 GMT

Strong magnitude 6.4 earthquake at 45 km depth

Earthquake details

Date & time	May 4, 1971 02:04:32 UTC
Local time at epicenter
Status	Confirmed
Magnitude	6.4
Depth	45.0 km
Epicenter latitude / longitude	6.564°S / 105.407°E (Indian Ocean, Indonesia)
Antipode	6.564°N / 74.593°W
Shaking intensity	Strong shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Krakatau (51 km / 32 mi)
Nearby towns and cities	51 km (32 mi) WSW of Labuan (Kabupaten Pandeglang) (pop: 33,600) \| Show on map \| Quakes nearby 82 km (51 mi) WSW of Pandeglang (pop: 92,300) \| Show on map \| Quakes nearby 96 km (60 mi) WSW of Rangkasbitung (pop: 126,900) \| Show on map \| Quakes nearby 97 km (60 mi) WSW of Serang (pop: 164,800) \| Show on map \| Quakes nearby 118 km (73 mi) WSW of Kresek (pop: 110,200) \| Show on map \| Quakes nearby 127 km (79 mi) WSW of Cikupa (pop: 174,000) \| Show on map \| Quakes nearby 127 km (79 mi) S of Bandar Lampung (pop: 800,300) \| Show on map \| Quakes nearby 131 km (82 mi) WSW of Curug (pop: 191,400) \| Show on map \| Quakes nearby 164 km (102 mi) WSW of Jakarta (pop: 8,540,100) \| Show on map \| Quakes nearby 246 km (153 mi) W of Bandung (pop: 1,699,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	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.

Mag.	Depth	Location	Source
6.4	45 km	Sunda Strait, Indonesia	USGS

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User reports for this quake

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There are no user reports for this quake.

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