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Moderate mag. 5.5 earthquake - Samoa Islands Region on Monday, 30 March 2015

Moderate mag. 5.8 earthquake - Tonga Islands on Monday, 30 March 2015

This quake was likely an aftershock of the M 6.5 quake: 99km ENE of Hihifo, Tonga on Mon, 30 Mar 08h48, which had occurred 9 hours earlier.
Moderate mag. 5.8 earthquake  - Tonga Islands on Monday, 30 March 2015
Mar 30 22:10: Magnitude recalculated from 5.6 to 5.8.
Date & time: Monday, 30 March 2015 18:02 UTC
Magnitude: 5.8
Depth: 10.0 km
Epicenter latitude / longitude: 15.59°S / 173.11°W (Samoa)
Nearest volcano: Curacoa (77 km)
Primary data source: GFZ
Estimated released energy: 3.2*10^13 J (8.78 GWh / 7558 tons of TNT / 0.5 atomic bombs equivalent) [learn more]
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Data for same earthquake as reported from other agencies
TimeMag. / DepthLocationSource
Mon, 30 Mar 2015
Mon, 30 Mar 18:02 UTCM 5.7 / 2 kmSAMOA ISLANDS REGIONEMSC
Mon, 30 Mar 18:02 UTCM 5.7 / 9.2 km107km ENE of Hihifo, TongaUSGS
Mon, 30 Mar 18:02 UTCM 6.1Samoa Islands RegionGeoAu

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