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Philippines

M5.3 Earthquake near 42 km WNW of Bacnotan, Philippines (Philippines)

UTC time: 2025-09-18 19:52:11 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M5.3
Depth
35.0 km
Source
USGS

42 km WNW of Bacnotan, Philippines

Country overview

Map

M5.3 Earthquake near 42 km WNW of Bacnotan, Philippines (Philippines) · 2025-09-18 — Map showing the location of the epicenter
M5.3 Earthquake near 42 km WNW of Bacnotan, Philippines (Philippines) · 2025-09-18 — Map showing the location of the epicenter

About this earthquake

On September 18, 2025 at 19:52 UTC, a magnitude M5.3 earthquake occurred near 42 km WNW of Bacnotan, Philippines (Philippines). With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS. Philippines: over the past 24 hours, QuakeMap24 logged 5 earthquakes, the strongest at M4.1.

Details

ID
5da66c8234fffe247020f4c0f1a6461e4bafc1b3
Magnitude
M5.3
Depth
35.0 km
UTC time
2025-09-18 19:52:11 UTC
Local time
—
Country
Philippines
Source
usgs
Coordinates
16.89050, 119.98970
Temperature
28.5°C

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 km
35 km — close to the regional average (29.4 km)
Regional average: 29.4 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
San Fernando46.3 kmSE83'003
La Trinidad80.0 kmSE142'925
Valenzuela265.1 kmSE725'173

GeoNames · CC BY 4.0

Volcanoes nearby

  • Pinatubo
    Distance: 200 km ·Stratovolcano ·Elevation: 1'486 m ·Last eruption: 2021 ·Philippines
  • Cagua
    Distance: 270 km ·Stratovolcano ·Elevation: 1'133 m ·Last eruption: 1860 ·Philippines
  • Camiguin de Babuyanes
    Distance: 293 km ·Stratovolcano ·Elevation: 712 m ·Last eruption: 1857 ·Philippines
  • Didicas
    Distance: 337 km ·Compound ·Elevation: 228 m ·Last eruption: 1978 ·Philippines
  • Taal
    Distance: 338 km ·Caldera ·Elevation: 311 m ·Last eruption: 2026 ·Philippines
  • San Pablo Volcanic Field
    Distance: 339 km ·Volcanic field ·Elevation: 1'090 m ·Last eruption: 1350 ·Philippines

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours2
First 24 hours2
First 72 hours5
Strongest subsequent eventM5.0
M3.72025-09-18 21:03:07 UTC17.2 kmLUZON, PHILIPPINES M4.02025-09-18 22:02:33 UTC11.5 kmLUZON, PHILIPPINES M3.02025-09-19 21:27:02 UTC135.7 kmLUZON, PHILIPPINES M3.52025-09-20 16:56:06 UTC11.5 kmLUZON, PHILIPPINES M3.62025-09-21 09:46:54 UTC118.8 kmLUZON, PHILIPPINES M3.22025-09-22 21:22:16 UTC80.3 kmLUZON, PHILIPPINES M3.52025-09-24 19:56:29 UTC11.9 kmLUZON, PHILIPPINES M3.62025-10-01 23:31:59 UTC23.3 kmLUZON, PHILIPPINES M5.02025-10-05 01:45:44 UTC146.1 kmPhilippine Islands Region M3.02025-10-10 17:25:41 UTC149.4 kmLUZON, PHILIPPINES M3.02025-10-11 16:43:21 UTC117.0 kmLUZON, PHILIPPINES M3.02025-10-15 10:10:17 UTC16.9 kmLUZON, PHILIPPINES

Philippines

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 1,992 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#2
Earlier events M≥417
Earlier events M≥54
Compared since2025-02-11

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.52025-09-18 19:52:09 UTC22.3 kmLuzon, Philippines M5.22025-09-18 19:52:07 UTC17.2 kmEvent of magnitude 5.2, near of Manila (Monde) M5.22025-05-24 02:36:10 UTC35.6 kmLUZON, PHILIPPINES M5.22025-05-24 02:36:09 UTC47.7 kmLuzon, Philippines M4.82025-09-18 19:52:07 UTC26.5 kmPhilippine Islands Region

Historic earthquake map · Philippines

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Philippines

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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