M5.5 earthquake 23 km N of Dapitan, Philippines
A magnitude 5.5 earthquake struck 23 km N of Dapitan, Philippines on Sat, Apr 16, 1977, 1:01 PM GMT+9 (04:01 UTC), 33 km (21 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), moderate
- Local time
- UTC
- 1977-04-16 04:01:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 8.861° N, 123.387° E
- Region
- Philippines
- Strongest shaking
- IV, light 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
- IV, light shaking
- Peak ground acceleration
- 5.6% of gravity
- Peak ground velocity
- 1.1 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
- OPERATOR_ASSIGNED
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000ne4. Read Tue, Sep 22, 2026, 8:01 AM UTC.