M5.7 earthquake 33 km E of Port-Olry, Vanuatu
A magnitude 5.7 earthquake struck 33 km E of Port-Olry, Vanuatu on Sun, Apr 25, 1982, 9:04 PM GMT+11 (10:04 UTC), 119 km (74 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1982-04-25 10:04:21 UTC
- Depth
- 119.0 km (73.9 mi), intermediate-depth
- Epicenter
- 15.055° S, 167.380° E
- Region
- Vanuatu
- 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. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.7 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 28 stations |
| 5.44 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.4 | 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 B042582A DATA USED: GDSN L.P. BODY WAVES: 11S, 31C, T=45 CENTROID LOCATION: ORIGIN TIME 10: 4:27.0 0.6 LAT 15.33S 0.04;LON 166.99E 0.05 DEP 120.7 2.0;HALF-DURATION 1.6 MOMENT TENSOR; SCALE 10**24 D-CM MRR=1.47 0.06; MTT=0.39 0.11 MFF=-1.86 0.11; MRT=-0.28 0.07 MRF=-0.68 0.06; MTF=0.03 0.10 PRINCIPAL AXES: 1.(T) VAL=1.67;PLG=73;AZM=139 2.(N) 0.33; 12; 3 3.(P) -2.00; 11; 271 BEST DOUBLE COUPLE:M0=1.8*10**24 NP1:STRIKE=345;DIP=35;SLIP=69 NP2:Strike=191;Dip=57;Slip=105
From the USGS event page for usp0001kxk. 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
- 2.1% of gravity
- Peak ground velocity
- -0.2 cm/s
- Map
- Automatic
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 2.7 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.625 km ENE of Luganville, Vanuatu · 16232 days ago · 120 km deep · 46 km away
- 5.323 km N of Norsup, Vanuatu · 16228 days ago · 33 km deep · 89 km away
- 4.351 km NE of Norsup, Vanuatu · 16181 days ago · 155 km deep · 94 km away
- 4.782 km E of Port-Olry, Vanuatu · 16179 days ago · 33 km deep · 49 km away
- 5.693 km ENE of Port-Olry, Vanuatu · 16178 days ago · 33 km deep · 65 km away
Before
- 4.532 km E of Luganville, Vanuatu · 16235 days ago · 116 km deep · 51 km away
- 5.117 km E of Port-Olry, Vanuatu · 16245 days ago · 125 km deep · 16 km away
- 5.4112 km ENE of Luganville, Vanuatu · 16254 days ago · 33 km deep · 81 km away
- 5.135 km NE of Luganville, Vanuatu · 16256 days ago · 133 km deep · 23 km away
- 5.5116 km ENE of Luganville, Vanuatu · 16256 days ago · 33 km deep · 83 km away
Earthquakes todayVanuatu earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001kxk (also filed as gcmtb042582a, gcmt19820425100420, iscgem601223). Read Mon, Oct 5, 2026, 9:16 AM UTC.