M4.8 earthquake 102 km WSW of Basco, Philippines
A magnitude 4.8 earthquake struck 102 km WSW of Basco, Philippines on Thu, Jan 5, 1984, 4:44 PM GMT+8 (08:44 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 98 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
- 4.8 (mb), light
- Local time
- UTC
- 1984-01-05 08:44:21 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 19.963° N, 121.139° 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 1.8 and up: 11 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.298 km W of Basco, Philippines · 15597 days ago · 22 km deep · 59 km away
- 4.2110 km W of Basco, Philippines · 15597 days ago · 33 km deep · 52 km away
- 4.4117 km W of Basco, Philippines · 15595 days ago · 33 km deep · 67 km away
- 4.585 km SW of Basco, Philippines · 15594 days ago · 66 km deep · 25 km away
- 3.9129 km W of Basco, Philippines · 15594 days ago · 38 km deep · 55 km away
- 4.7107 km W of Basco, Philippines · 15594 days ago · 21 km deep · 61 km away
- 4.390 km W of Basco, Philippines · 15594 days ago · 33 km deep · 57 km away
- 4.493 km W of Basco, Philippines · 15590 days ago · 35 km deep · 59 km away
- 4.898 km WNW of Basco, Philippines · 15587 days ago · 19 km deep · 87 km away
- 4.9108 km W of Basco, Philippines · 15578 days ago · 33 km deep · 50 km away
- 5.467 km N of Namuac, Philippines · 15549 days ago · 34 km deep · 84 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000211q. Read Thu, Sep 24, 2026, 4:53 AM UTC.