M4.6 earthquake 19 km NNW of Cortes, Philippines
A magnitude 4.6 earthquake struck 19 km NNW of Cortes, Philippines on Sun, Oct 25, 1987, 12:46 AM GMT+8 (16:46 UTC), 101 km (63 mi) below the surface.
A larger quake followed: M5.4 30 km E of Union, 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
- 1987-10-24 16:46:55 UTC
- Depth
- 101.4 km (63.0 mi), intermediate-depth
- Epicenter
- 9.447° N, 126.143° 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 1.6 and up: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.430 km E of Union, Philippines · 14201 days ago · 25 km deep · 47 km away
- 4.68 km NW of Marihatag, Philippines · 14168 days ago · 33 km deep · 66 km away
Before
- 4.78 km SSE of Gamut, Philippines · 14220 days ago · 33 km deep · 57 km away
- 4.641 km NNE of Santa Monica, Philippines · 14233 days ago · 57 km deep · 99 km away
- 4.913 km ENE of Bacolod, Philippines · 14236 days ago · 70 km deep · 59 km away
- 4.929 km ESE of Cortes, Philippines · 14244 days ago · 62 km deep · 42 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00039jk. Read Mon, Sep 28, 2026, 5:22 PM UTC.