Philippines earthquakes

M4.5 earthquake 44 km NE of Cortes, Philippines

A magnitude 4.5 earthquake struck 44 km NE of Cortes, Philippines on Sat, Jun 8, 1991, 4:06 AM GMT+8 (20:06 UTC), 64 km (40 mi) below the surface.

A larger quake followed: M6.1 21 km WNW of Santa Monica, Philippines. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1991-06-07 20:06:33 UTC
Depth
64.4 km (40.0 mi), shallow
Epicenter
9.523° N, 126.516° E
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: 7 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.885 km E of Aras-asan, Philippines · 12899 days ago · 58 km deep · 100 km away
  2. 4.714 km ESE of Salvacion, Philippines · 12899 days ago · 90 km deep · 97 km away
  3. 4.639 km ESE of Marihatag, Philippines · 12899 days ago · 33 km deep · 97 km away
  4. 6.121 km WNW of Santa Monica, Philippines · 12892 days ago · 71 km deep · 97 km away
  5. 4.490 km E of Aras-asan, Philippines · 12878 days ago · 33 km deep · 90 km away
  6. 5.115 km E of Santa Monica, Philippines · 12867 days ago · 32 km deep · 66 km away
  7. 4.734 km E of Santa Monica, Philippines · 12862 days ago · 33 km deep · 62 km away

Before

  1. 4.7Mindanao, Philippines · 12901 days ago · 77 km deep · 27 km away
  2. 4.832 km NE of Cortes, Philippines · 12901 days ago · 66 km deep · 12 km away
  3. 4.411 km NNE of Santa Monica, Philippines · 12908 days ago · 33 km deep · 80 km away
  4. 4.624 km NE of Santa Monica, Philippines · 12908 days ago · 33 km deep · 80 km away
  5. 4.815 km ESE of Socorro, Philippines · 12930 days ago · 68 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0004sna. Read Fri, Oct 2, 2026, 12:03 AM UTC.