Earthquake details

Tuesday, July 18, 1978 Earthquake

The earthquake hit Guam on Tuesday, July 18, 1978 at 12:02 UTC with a magnitude of 5.1. The closest known location in the current dataset is Dededo Village (Guam - GU), about 252.1 km away. The epicenter is located at longitude 143.353 and latitude 11.778.

Magnitude	5.1
Alert	Strong
Depth	33.0 km
Coordinates	11.778, 143.353
UTC time	1978-07-18 12:02:10.100

Location	Dededo Village
Country	Guam (GU)
Severity	Strong

Earthquake map 1978-07-18

Closest countries

The 12 closest cities near the epicenter.

Dededo Village	252.1 km
Saipan	462.3 km
Jayapura	1619.6 km
Abepura	1628.2 km
Manokwari	1742.2 km
Wamena	1833.1 km
Nabire	1896.1 km
Tandag	1901.5 km
Bislig	1908.8 km
Sorong	1942.5 km
Monkayo	1947.6 km
Compostela	1947.9 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	343.0 km
M 4.1 Dededo Village Guam · 2026-04-09 18:06 UTC	281.4 km
M 4.5 Dededo Village Guam · 2026-03-29 15:06 UTC	297.0 km
M 4.3 Dededo Village Guam · 2026-03-29 06:36 UTC	313.5 km
M 4.1 Dededo Village Guam · 2026-03-21 11:23 UTC	272.3 km
M 4.5 Dededo Village Guam · 2026-02-27 03:57 UTC	259.6 km
M 4.3 Dededo Village Guam · 2026-02-15 02:20 UTC	291.3 km
M 4.1 Dededo Village Guam · 2026-02-13 01:20 UTC	273.5 km

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