M1.2 Depth: 7.7 km

M1.2 Earthquake near Rancho Cucamonga (United States)

UTC time: 2025-12-17 19:04:10 UTC Local time: —

About this earthquake

On December 17, 2025 at 19:04 UTC, a magnitude M1.2 earthquake occurred near Rancho Cucamonga (United States). With a focal depth of about 8 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 SCEDC. United States: 225 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

Details

Magnitude

M1.2

Depth

7.7 km

UTC time

2025-12-17 19:04:10 UTC

Local time

—

Country

United States

City

Rancho Cucamonga

Source

scedc

Coordinates

34.08100, -117.53384

Temperature

21.0°C

Map

Depth profile

Shallow

7.7 km

7.7 km — shallower than the regional average (15.7 km)

Regional average: 15.7 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

Salton Buttes

Distance: 203 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
Ubehebe Craters

Distance: 327 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
Mammoth Mountain

Distance: 417 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
Mono-Inyo Craters

Distance: 435 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
Pinacate

Distance: 451 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
Mono Lake Volcanic Field

Distance: 456 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

Historic earthquake map · United States

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 · United States

Country overview

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

Stats (last 24h)

Global (24h)

669

Country (24h)