M4.5 earthquake 106 km WSW of Basco, Philippines
A magnitude 4.5 earthquake struck 106 km WSW of Basco, Philippines on Sun, Oct 21, 1984, 11:51 PM GMT+8 (15:51 UTC), 45 km (28 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1984-10-21 15:51:18 UTC
- Depth
- 45.2 km (28.1 mi), shallow
- Epicenter
- 20.061° N, 121.042° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00028c1. Read Thu, Sep 24, 2026, 2:10 PM UTC.