M4.8 earthquake 15 km ESE of Socorro, Philippines
A magnitude 4.8 earthquake struck 15 km ESE of Socorro, Philippines on Thu, May 9, 1991, 9:17 AM GMT+8 (01:17 UTC), 68 km (42 mi) below the surface.
A larger quake followed: M6.1 21 km WNW of Santa Monica, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1991-05-09 01:17:27 UTC
- Depth
- 68.1 km (42.3 mi), shallow
- Epicenter
- 9.561° N, 126.095° 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 1.8 and up: 6 in the 60 days after this one and 10 in the 30 days before it.
After
- 4.624 km NE of Santa Monica, Philippines · 12908 days ago · 33 km deep · 69 km away
- 4.411 km NNE of Santa Monica, Philippines · 12908 days ago · 33 km deep · 61 km away
- 4.832 km NE of Cortes, Philippines · 12901 days ago · 66 km deep · 38 km away
- 4.7Mindanao, Philippines · 12901 days ago · 77 km deep · 23 km away
- 4.544 km NE of Cortes, Philippines · 12900 days ago · 64 km deep · 46 km away
- 6.121 km WNW of Santa Monica, Philippines · 12892 days ago · 71 km deep · 65 km away
Before
- 4.949 km ENE of Aras-asan, Philippines · 12933 days ago · 33 km deep · 88 km away
- 4.745 km ENE of Aras-asan, Philippines · 12939 days ago · 74 km deep · 82 km away
- 4.540 km ENE of La Paz, Philippines · 12940 days ago · 87 km deep · 73 km away
- 4.462 km ENE of Cortes, Philippines · 12940 days ago · 41 km deep · 71 km away
- 5.230 km NE of Tago, Philippines · 12941 days ago · 58 km deep · 58 km away
- 4.531 km ENE of Bacolod, Philippines · 12942 days ago · 98 km deep · 75 km away
- 4.221 km NE of Tago, Philippines · 12942 days ago · 60 km deep · 58 km away
- 5.553 km ENE of Aras-asan, Philippines · 12944 days ago · 33 km deep · 94 km away
- 4.236 km E of Aras-asan, Philippines · 12945 days ago · 60 km deep · 96 km away
- 6.350 km ENE of Aras-asan, Philippines · 12945 days ago · 14 km deep · 91 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0004re6. Read Thu, Oct 1, 2026, 7:06 PM UTC.