M4.3 earthquake 90 km W of Basco, Philippines
A magnitude 4.3 earthquake struck 90 km W of Basco, Philippines on Sat, Jan 14, 1984, 8:25 PM GMT+8 (12:25 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.4 93 km W of Basco, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1984-01-14 12:25:40 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.476° N, 121.100° 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 1.5 and up: 3 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.493 km W of Basco, Philippines · 15589 days ago · 35 km deep · 3 km away
- 4.898 km WNW of Basco, Philippines · 15587 days ago · 19 km deep · 29 km away
- 4.9108 km W of Basco, Philippines · 15577 days ago · 33 km deep · 21 km away
Before
- 4.7107 km W of Basco, Philippines · 15593 days ago · 21 km deep · 17 km away
- 3.9129 km W of Basco, Philippines · 15593 days ago · 38 km deep · 42 km away
- 4.585 km SW of Basco, Philippines · 15593 days ago · 66 km deep · 68 km away
- 4.4117 km W of Basco, Philippines · 15594 days ago · 33 km deep · 27 km away
- 4.2110 km W of Basco, Philippines · 15596 days ago · 33 km deep · 22 km away
- 5.298 km W of Basco, Philippines · 15596 days ago · 22 km deep · 8 km away
- 4.8102 km WSW of Basco, Philippines · 15602 days ago · 33 km deep · 57 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002188. Read Wed, Sep 23, 2026, 5:35 AM UTC.