M5.0 earthquake 17 km E of Union, Philippines
A magnitude 5.0 earthquake struck 17 km E of Union, Philippines on Wed, Mar 27, 1991, 3:24 AM GMT+8 (19:24 UTC), 49 km (30 mi) below the surface.
A larger quake followed: M6.3 50 km ENE of Aras-asan, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1991-03-26 19:24:40 UTC
- Depth
- 48.7 km (30.3 mi), shallow
- Epicenter
- 9.774° N, 126.266° 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 2.0 and up: 10 in the 60 days after this one and 7 in the 30 days before it.
After
- 6.350 km ENE of Aras-asan, Philippines · 12943 days ago · 14 km deep · 97 km away
- 5.553 km ENE of Aras-asan, Philippines · 12943 days ago · 33 km deep · 98 km away
- 4.221 km NE of Tago, Philippines · 12941 days ago · 60 km deep · 73 km away
- 4.531 km ENE of Bacolod, Philippines · 12940 days ago · 98 km deep · 86 km away
- 5.230 km NE of Tago, Philippines · 12940 days ago · 58 km deep · 69 km away
- 4.462 km ENE of Cortes, Philippines · 12939 days ago · 41 km deep · 62 km away
- 4.540 km ENE of La Paz, Philippines · 12939 days ago · 87 km deep · 80 km away
- 4.745 km ENE of Aras-asan, Philippines · 12938 days ago · 74 km deep · 88 km away
- 4.949 km ENE of Aras-asan, Philippines · 12932 days ago · 33 km deep · 93 km away
- 4.815 km ESE of Socorro, Philippines · 12928 days ago · 68 km deep · 30 km away
Before
- 4.332 km ENE of Cortes, Philippines · 12976 days ago · 76 km deep · 49 km away
- 4.371 km ENE of Bacolod, Philippines · 12996 days ago · 72 km deep · 92 km away
- 5.046 km ENE of La Paz, Philippines · 12996 days ago · 86 km deep · 78 km away
- 5.18 km ENE of Aras-asan, Philippines · 12999 days ago · 64 km deep · 97 km away
- 4.720 km E of Cortes, Philippines · 13000 days ago · 60 km deep · 58 km away
- 4.638 km NE of La Paz, Philippines · 13001 days ago · 60 km deep · 72 km away
- 4.616 km E of Tigao, Philippines · 13001 days ago · 100 km deep · 64 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0004pkc. Read Wed, Sep 30, 2026, 9:52 AM UTC.