Philippines earthquakes

M5.5 earthquake 170 km S of Sarangani, Philippines

A magnitude 5.5 earthquake struck 170 km S of Sarangani, Philippines on Mon, Jun 18, 1990, 5:15 AM GMT+8 (21:15 UTC), 168 km (104 mi) below the surface.

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

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The earthquake

Magnitude: 5.5 (Mw, moment), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, Jun 18, 1990, 5:15 AM GMT+8
UTC: 1990-06-17 21:15:26 UTC
Depth: 167.7 km (104.2 mi), intermediate-depth
Epicenter: 3.879° N, 125.690° E
Region: Philippines
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
5.5	Mw, moment	USGS National Earthquake Information Center	Preferred · Reviewed
5.5	Mw, moment	ISC-GEM global catalog	Final · ±0.1
5.5	Mwc, centroid moment	Global CMT project	Preliminary

What happened

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

CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 15S, 25C Centroid Location: Origin Time 21:15:27.9 0.5 Lat 4.10N 0.06 Lon 125.65E 0.05 Dep 144.3 1.7 Half-duration 2.2 Moment Tensor; Scale 10**17 Nm Mrr=-0.67 0.07 Mtt=0.06 0.09 Mff=0.61 0.10 Mrt=0.56 0.07 Mrf=1.90 0.08 Mtf=-0.81 0.10 Principal Axes: (T) Val=2.04 Plg=33 Azm=257 (N) Val=0.35 Plg=24 Azm=3 (P) Val=-2.38 Plg=48 Azm=122 Best Double Couple:Mo=2.2*10**17 NP1:Strike=295 Dip=25 Slip=-160 NP2:Strike=187 Dip=82 Slip=-66

From the USGS event page for usp0004and. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 3 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 usp0004and (also filed as gcmtb061790c, gcmt19900617211526, iscgem366504). Read Sun, Oct 4, 2026, 4:50 AM UTC.