Earthquake details

Thursday, March 30, 1978 Earthquake

The earthquake hit Guam on Thursday, March 30, 1978 at 02:42 UTC with a magnitude of 5.3. The closest known location in the current dataset is Dededo Village (Guam - GU), about 141.2 km away. The epicenter is located at longitude 143.983 and latitude 12.562.

Magnitude	5.3
Alert	Strong
Depth	9.0 km
Coordinates	12.562, 143.983
UTC time	1978-03-30 02:42:11.700

Location	Dededo Village
Country	Guam (GU)
Severity	Strong

Earthquake map 1978-03-30

Closest countries

The 12 closest cities near the epicenter.

Dededo Village	141.2 km
Saipan	351.7 km
Jayapura	1718.8 km
Abepura	1727.6 km
Manokwari	1853.1 km
Wamena	1936.2 km
Tandag	1982.2 km
Bislig	1993.2 km
Nabire	2005.4 km
Monkayo	2033.3 km
Compostela	2034.2 km
Bayugan	2036.6 km

Nearby earthquakes

The latest 8 earthquakes within 100 km of this epicenter.

M 4.5 Dededo Village Guam · 2026-04-12 19:43 UTC	233.8 km
M 4.1 Dededo Village Guam · 2026-04-09 18:06 UTC	170.8 km
M 4.5 Dededo Village Guam · 2026-03-29 15:06 UTC	186.8 km
M 4.3 Dededo Village Guam · 2026-03-29 06:36 UTC	208.8 km
M 4.1 Dededo Village Guam · 2026-03-21 11:23 UTC	161.8 km
M 4.5 Dededo Village Guam · 2026-02-27 03:57 UTC	149.7 km
M 4.3 Dededo Village Guam · 2026-02-15 02:20 UTC	180.5 km
M 4.1 Dededo Village Guam · 2026-02-13 01:20 UTC	164.5 km

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