M5.5 earthquake 5 km ESE of Hukay, Philippines
A magnitude 5.5 earthquake struck 5 km ESE of Hukay, Philippines on Wed, Jun 1, 1983, 9:36 AM GMT+8 (01:36 UTC), 236 km (147 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1983-06-01 01:36:58 UTC
- Depth
- 236.4 km (146.9 mi), intermediate-depth
- Epicenter
- 13.833° N, 120.749° 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 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 57 stations |
| 5.92 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.9 | Mwc, centroid moment | Global CMT project | Preliminary |
What happened
The USGS’s account of the effects of this earthquake.
CENTROID, MOMENT TENSOR SOLUTION HARVARD EVENT-FILE NAME B060183A DATA USED: GDSN L.P. BODY WAVES: 21S, 49C, T=45 CENTROID LOCATION: ORIGIN TIME 1:37: 0.2 0.3 LAT 13.90N 0.02;LON 120.78E 0.04 DEP 229.0 1.7;HALF-DURATION 3.4 MOMENT TENSOR; SCALE 10**24 D-CM MRR=5.27 0.31; MTT=-8.03 0.31 MFF=2.76 0.52; MRT=-5.96 0.31 MRF=1.64 0.30; MTF=-0.35 0.32 PRINCIPAL AXES: 1.(T) VAL=8.07;PLG=63;AZM=221 2.(N) 2.24; 16; 97 3.(P) -10.31; 21; 1 BEST DOUBLE COUPLE:M0=9.2*10**24 NP1:STRIKE=65;DIP=28;SLIP=54 NP2:Strike=284;Dip=68;Slip=107
From the USGS event page for usp0001vub. 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.58 km SSE of Hukay, Philippines · 15809 days ago · 212 km deep · 6 km away
- 4.89 km ESE of Paluan, Philippines · 15793 days ago · 44 km deep · 55 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001vub (also filed as gcmtb060183a, gcmt19830601013700, iscgem573176). Read Fri, Oct 2, 2026, 8:15 PM UTC.