M4.6 earthquake 4 km ESE of Biga, Philippines
A magnitude 4.6 earthquake struck 4 km ESE of Biga, Philippines on Tue, Jan 17, 1984, 8:12 AM GMT+8 (00:12 UTC), 163 km (101 mi) below the surface.
A larger quake followed: M4.7 Mindoro, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1984-01-17 00:12:18 UTC
- Depth
- 163.1 km (101.3 mi), intermediate-depth
- Epicenter
- 13.892° N, 120.690° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.65 km S of Magallanes, Philippines · 15590 days ago · 168 km deep · 29 km away
- 4.7Mindoro, Philippines · 15561 days ago · 200 km deep · 35 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00021ah. Read Wed, Sep 23, 2026, 8:10 PM UTC.