M5.6 earthquake 78 km WSW of Basco, Philippines
A magnitude 5.6 earthquake struck 78 km WSW of Basco, Philippines on Mon, Aug 11, 1986, 6:37 PM GMT+8 (10:37 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
- 5.6 (mw), moderate
- Local time
- UTC
- 1986-08-11 10:37:59 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.101° N, 121.312° E
- Region
- Philippines
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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
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 2 in the 30 days before it.
After
- 4.4101 km SW of Basco, Philippines · 14627 days ago · 79 km deep · 25 km away
- 4.5106 km WSW of Basco, Philippines · 14608 days ago · 48 km deep · 28 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002x1v (also filed as gcmtb081186c, gcmt19860811103759, iscgem488404). Read Tue, Sep 22, 2026, 7:17 AM UTC.