Indonesia earthquakes

M5.4 earthquake 153 km WNW of Tobelo, Indonesia

A magnitude 5.4 earthquake struck 153 km WNW of Tobelo, Indonesia on Thu, Feb 24, 1983, 6:26 AM GMT+9 (21:26 UTC), 71 km (44 mi) below the surface.

A larger quake followed: M5.5 159 km WNW of Tobelo, Indonesia. This one was a foreshock.

Tobelo forecast More in Indonesia

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The earthquake

Magnitude: 5.4 (mb, body-wave), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Feb 24, 1983, 6:26 AM GMT+9
UTC: 1983-02-23 21:26:44 UTC
Depth: 71.1 km (44.2 mi), intermediate-depth
Epicenter: 2.047° N, 126.669° E
Region: Indonesia
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
5.4	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · 33 stations
5.43	Mw, moment	ISC-GEM global catalog	Final · ±0.1
5.4	Mwc, centroid moment	Global CMT project	Preliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.4 and up: 7 in the 60 days after this one and 2 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001t9f (also filed as gcmtb022383a, gcmt19830223212644, iscgem583445). Read Mon, Oct 5, 2026, 7:59 AM UTC.