Light mag. 4.1 earthquake - Indian Ocean, 87 km northeast of Tshole-Shamba Island, Pwani, Tanzania, on Wednesday, 13 April 1983 at 02:13 (GMT)
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Light magnitude 4.1 earthquake at 33 km depth
Date & time: 13 Apr 1983 02:13:52 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 7.38°S / 40.406°E (Indian Ocean, Tanzania)
Nearby towns and cities:
101 km (63 mi) NE of Kilindoni (Mafia) (pop: 12,400) --> See nearby quakes!
129 km (80 mi) ESE of Vikindu (Mkuranga) (pop: 23,300) --> See nearby quakes!
135 km (84 mi) ESE of Mkwanga (Mkuranga) (pop: 28,000) --> See nearby quakes!
140 km (87 mi) ESE of Dar es Salaam (pop: 2,698,700) --> See nearby quakes!
151 km (94 mi) E of Bungu (Rufiji) (pop: 27,900) --> See nearby quakes!
178 km (111 mi) ESE of Kibaha (pop: 23,700) --> See nearby quakes!
190 km (118 mi) SE of Zanzibar (pop: 403,700) --> See nearby quakes!
196 km (122 mi) ESE of Bagamoyo (pop: 82,400) --> See nearby quakes!
533 km (331 mi) ESE of Dodoma (pop: 180,500) --> See nearby quakes!
573 km (356 mi) NW of Moroni (Comoros) (pop: 42,900) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) 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.
|M 4.1||33 km||off the coast of Tanzania||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.