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Great mag. 8.0 earthquake - Samoa Islands Region on Tuesday, 26 June 1917

Great mag. 8.0 earthquake  - Samoa Islands Region on Tuesday, 26 June 1917
Date & time: Tuesday, 26 June 1917 05:49 UTC
Magnitude: 8.0
Depth: 15.0 km
Epicenter latitude / longitude: 14.739°S / 173.562°W (Samoa)
Nearest volcano: West Mata (45 km / 28 mi)
Nearby towns and cities:
137 km (85 mi) N of Hihifo (pop: 800)
168 km (105 mi) SW of Asau (pop: 6,600)
172 km (107 mi) SW of Satupa‘itea (pop: 0)
174 km (108 mi) SW of Vailoa (pop: 800)
190 km (118 mi) SW of Safotu (pop: 1,200)
193 km (120 mi) SW of Mulifanua (pop: 4,500)
Primary data source: USGS
Estimated released energy: 6.3 x 1016 joules (17527 gigawatt hours, equivalent to 1.5 x 107 tons of TNT or 942.5 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Tue, 26 Jun 05:49 UTCM 8.0 / 15 kmSamoa Islands RegionUSGS
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.

Aftershocks of the 8.0 quake: Samoa Islands Region, 26 Jun 1917 05h49

More info
Recorded aftershocks, latest first (2 quakes):

Map of aftershocks

Earlier earthquakes in the same area

Great mag. 8.0 earthquake - Samoa Islands Region on Tuesday, 26 June 1917
 

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