M5.5 earthquake 1 km NW of Barong, Philippines
A magnitude 5.5 earthquake struck 1 km NW of Barong, Philippines on Thu, Apr 29, 1971, 8:46 AM GMT+8 (00:46 UTC), 31 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1971-04-29 00:46:46 UTC
- Depth
- 30.9 km (19.2 mi), shallow
- Epicenter
- 18.064° N, 120.724° E
- Region
- Philippines
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 7.8% of gravity
- Peak ground velocity
- 1.6 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.
- Magnitude uncertainty
- ±0.23
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem786000. Read Thu, Sep 24, 2026, 4:52 AM UTC.