Indonesia earthquakes

M5.5 earthquake 106 km ESE of Gorontalo, Indonesia

A magnitude 5.5 earthquake struck 106 km ESE of Gorontalo, Indonesia on Fri, May 23, 2003, 12:01 AM GMT+8 (16:01 UTC), 156 km (97 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
5.5 (Mwc, centroid moment), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2003-05-22 16:01:42 UTC
Depth
156.2 km (97.1 mi), intermediate-depth
Epicenter
0.151° N, 123.940° E
Region
Indonesia
Strongest shaking
IV, light shaking
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.ScaleComputed byNotes
5.5Mwc, centroid momentUSGS National Earthquake Information CenterPreferred · Reviewed
5.42Mw, momentISC-GEM global catalogFinal · ±0.1
5.4Mwc, centroid momentGlobal CMT projectPreliminary

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000bxvd. U.S. Geological Survey text and figures are in the public domain.

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
IV, light shaking
Peak ground acceleration
0.9% of gravity
Peak ground velocity
-1.0 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Reverse (thrust)
Nodal plane 1
Strike 176°, dip 36°, rake 89°
Nodal plane 2
Strike 358°, dip 54°, rake 91°

How well it is located

Reviewed by a seismologist.

Station coverage gap
68°
Stations used
158

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 9 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayIndonesia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000bxvd (also filed as gcmtb052203d, gcmt20030522160142, iscgem6846699). Read Fri, Oct 2, 2026, 10:57 PM UTC.