Major magnitude 6.9 earthquake - Indian Ocean, 85 km south of Nias Island, North Sumatra, Indonesia, on Wednesday, 4 December 1974 at 03:07 (GMT)
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Major magnitude 6.9 earthquake at 20 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 20.0 km
Epicenter latitude / longitude: 0.393°N / 97.843°E (Indian Ocean, Indonesia)
Nearest volcano: Sorikmarapi (191 km / 119 mi)
Nearby towns and cities:
183 km (113 mi) SW of Sibolga (pop: 79,700) --> See nearby quakes!
193 km (120 mi) SW of Padangsidempuan (pop: 100,600) --> See nearby quakes!
211 km (131 mi) S of Singkil (pop: 46,800) --> See nearby quakes!
277 km (172 mi) WNW of Pariaman (pop: 92,200) --> See nearby quakes!
292 km (181 mi) SW of Rantauprapat (pop: 103,000) --> See nearby quakes!
292 km (181 mi) WNW of Bukittinggi (pop: 98,700) --> See nearby quakes!
317 km (197 mi) WNW of Padang (pop: 840,400) --> See nearby quakes!
366 km (228 mi) SSW of Medan (pop: 1,751,000) --> See nearby quakes!
400 km (249 mi) W of Pekanbaru (pop: 704,000) --> See nearby quakes!
525 km (326 mi) SW of Kuala Lumpur (Malaysia) (pop: 1,454,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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.
|6.9||20 km||Nias region, Indonesia||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
More infoRecorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.