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Philippines · Ilocos Sur

M1.7 Earthquake near Santiago, Ilocos Sur (Philippines)

UTC time: 2026-11-03 18:41:00 UTC Local time: —

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About this earthquake

On November 3, 2026 at 18:41 UTC, a magnitude M1.7 earthquake occurred near Santiago, Ilocos Sur (Philippines). With a focal depth of about 27 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by PHIVOLCS. Philippines: 51 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

ID
c57c07571340c2db651a8214831fb2a4d4818fb7
Magnitude
M1.7
Depth
27.0 km
UTC time
2026-11-03 18:41:00 UTC
Local time
—
Country
Philippines
State
Ilocos Sur
City
Santiago
Source
phivolcs
Coordinates
17.30000, 120.37000
Temperature
23.8°C

Depth profile

Depth profile Depth: 27 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 27 km
Shallow
27 km
27 km — close to the regional average (29.6 km)
Regional average: 29.6 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

Volcanoes nearby

  • Cagua
    Distance: 212 km ·Stratovolcano ·Elevation: 1'133 m ·Last eruption: 1860 ·Philippines
  • Camiguin de Babuyanes
    Distance: 232 km ·Stratovolcano ·Elevation: 712 m ·Last eruption: 1857 ·Philippines
  • Pinatubo
    Distance: 241 km ·Stratovolcano ·Elevation: 1'486 m ·Last eruption: 2021 ·Philippines
  • Didicas
    Distance: 277 km ·Compound ·Elevation: 228 m ·Last eruption: 1978 ·Philippines
  • Babuyan Claro
    Distance: 298 km ·Stratovolcano(es) ·Elevation: 1'064 m ·Last eruption: 1924 ·Philippines
  • San Pablo Volcanic Field
    Distance: 367 km ·Volcanic field ·Elevation: 1'090 m ·Last eruption: 1350 ·Philippines

Philippines

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 1,995 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

Historic earthquake map · Philippines

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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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