Philippines earthquakes

M5.6 earthquake 6 km WSW of Hinundayan, Philippines

A magnitude 5.6 earthquake struck 6 km WSW of Hinundayan, Philippines on Mon, Nov 12, 1984, 7:07 AM GMT+8 (23:07 UTC), 32 km (20 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: 5.6 (Mw, moment), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, Nov 12, 1984, 7:07 AM GMT+8
UTC: 1984-11-11 23:07:25 UTC
Depth: 32.3 km (20.1 mi), shallow
Epicenter: 10.339° N, 125.191° E
Region: Philippines
Strongest shaking: VI, strong 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.	Scale	Computed by	Notes
5.6	Mw, moment	USGS National Earthquake Information Center	Preferred · Reviewed
5.59	Mw, moment	ISC-GEM global catalog	Final · ±0.1
5.6	Mwc, centroid moment	Global CMT project	Preliminary

What happened

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

Felt (II RF) on Mactan. CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 12S, 25C Centroid Location: Origin Time 23:07:28.4 0.3 Lat 10.16N 0.04 Lon 125.32E 0.05 Dep 26.4 3.5 Half-duration 2.5 Moment Tensor; Scale 10**24 D-CM Mrr=-0.92 0.13 Mtt=2.47 0.12 Mff=-1.55 0.21 Mrt=1.61 0.36 Mrf=-0.03 0.22 Mtf=1.68 0.10 Principal Axes: (T) Val=3.58 Plg=19 Azm=342 (N) Val=-1.13 Plg=56 Azm=102 (P) Val=-2.45 Plg=27 Azm=242 Best Double Couple:Mo=3.0*10**24 NP1:Strike=24 Dip=57 Slip=-173 NP2:Strike=291 Dip=84 Slip=-33

From the USGS event page for usp00028zk. 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: VI, strong shaking
Peak ground acceleration: 11.7% of gravity
Peak ground velocity: 2.1 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.

Nearest places

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

Nearby

Within 100 km, magnitude 2.6 and up: 9 in the 60 days after this one and 9 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00028zk (also filed as gcmtb111184b, gcmt19841111230725, iscgem538917). Read Fri, Oct 2, 2026, 2:26 AM UTC.