M4.4 earthquake 93 km W of Basco, Philippines
A magnitude 4.4 earthquake struck 93 km W of Basco, Philippines on Wed, Jan 18, 1984, 3:49 PM GMT+8 (07:49 UTC), 35 km (21 mi) below the surface.
A larger quake followed: M4.9 108 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
- 4.4 (mb), light
- Local time
- UTC
- 1984-01-18 07:49:24 UTC
- Depth
- 34.6 km (21.5 mi), shallow
- Epicenter
- 20.489° N, 121.079° 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: 2 in the 60 days after this one and 8 in the 30 days before it.
After
- 4.898 km WNW of Basco, Philippines · 15591 days ago · 19 km deep · 28 km away
- 4.9108 km W of Basco, Philippines · 15581 days ago · 33 km deep · 20 km away
Before
- 4.390 km W of Basco, Philippines · 15597 days ago · 33 km deep · 3 km away
- 4.7107 km W of Basco, Philippines · 15597 days ago · 21 km deep · 15 km away
- 3.9129 km W of Basco, Philippines · 15598 days ago · 38 km deep · 41 km away
- 4.585 km SW of Basco, Philippines · 15598 days ago · 66 km deep · 70 km away
- 4.4117 km W of Basco, Philippines · 15598 days ago · 33 km deep · 24 km away
- 4.2110 km W of Basco, Philippines · 15600 days ago · 33 km deep · 21 km away
- 5.298 km W of Basco, Philippines · 15600 days ago · 22 km deep · 6 km away
- 4.8102 km WSW of Basco, Philippines · 15606 days ago · 33 km deep · 59 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00021bq. Read Sun, Sep 27, 2026, 6:47 PM UTC.