Philippines earthquakes

M4.5 earthquake 7 km SE of Union, Philippines

A magnitude 4.5 earthquake struck 7 km SE of Union, Philippines on Thu, May 1, 2003, 11:08 AM GMT+8 (03:08 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.7 17 km WNW of Cantapoy, Philippines. This one was a foreshock.

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Map

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
2003-05-01 03:08:57 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
9.707° N, 126.161° E
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000bwbs. U.S. Geological Survey text and figures are in the public domain.

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
OPERATOR_ASSIGNED
Station coverage gap
137°
Stations used
10

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.717 km WNW of Cantapoy, Philippines · 8529 days ago · 54 km deep · 96 km away
  2. 4.712 km NNE of Adlay, Philippines · 8510 days ago · 112 km deep · 32 km away
  3. 4.75 km NNE of Bangonay, Philippines · 8504 days ago · 33 km deep · 75 km away
  4. 4.626 km ENE of La Paz, Philippines · 8498 days ago · 33 km deep · 76 km away

Before

  1. 4.520 km N of Cortes, Philippines · 8558 days ago · 56 km deep · 27 km away
  2. 4.33 km WNW of Bacolod, Philippines · 8559 days ago · 92 km deep · 86 km away
  3. 4.8Leyte, Philippines · 8562 days ago · 100 km deep · 84 km away
  4. 4.234 km NNW of Santa Monica, Philippines · 8564 days ago · 42 km deep · 72 km away
  5. 4.60 km SSE of Cantilan, Philippines · 8565 days ago · 157 km deep · 47 km away
  6. 4.750 km NE of Santa Monica, Philippines · 8567 days ago · 39 km deep · 70 km away
  7. 4.734 km E of Cortes, Philippines · 8572 days ago · 33 km deep · 64 km away
  8. 4.2Mindanao, Philippines · 8573 days ago · 33 km deep · 26 km away
  9. 4.030 km E of Pilar, Philippines · 8576 days ago · 33 km deep · 31 km away
  10. 4.815 km ENE of Pilar, Philippines · 8576 days ago · 86 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000bwbs. Read Thu, Oct 1, 2026, 3:24 AM UTC.