M5.0 earthquake 97 km SW of Basco, Philippines
A magnitude 5.0 earthquake struck 97 km SW of Basco, Philippines on Mon, Aug 12, 1985, 10:33 AM GMT+8 (02:33 UTC), 28 km (17 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1985-08-12 02:33:19 UTC
- Depth
- 27.5 km (17.1 mi), shallow
- Epicenter
- 19.944° N, 121.200° E
- Region
- Philippines
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (II RF) on Calayan Island.
From the USGS event page for usp0002hmp. 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 2.0 and up: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
- 4.4138 km W of Basco, Philippines · 15027 days ago · 33 km deep · 65 km away
- 4.5Babuyan Islands region, Philippines · 15030 days ago · 70 km deep · 33 km away
- 4.5104 km SW of Basco, Philippines · 15031 days ago · 61 km deep · 33 km away
- 4.590 km WNW of Basco, Philippines · 15041 days ago · 33 km deep · 81 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002hmp. Read Thu, Oct 1, 2026, 3:04 AM UTC.