Earthquake 6 km NW of Rialto, CA (1.0 ml) (2025-07-31 15:46:03 UTC)

1753976763

34.1442, -117.4148

4.82 KM

A 1.0 magnitude earthquake struck on 6 km NW of Rialto, CA, at 2025-07-31 15:46:03 UTC. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of ml and was felt in surrounding areas. Stay updated on earthquake activity in 6 km NW of Rialto, CA

Recommendation
Minor Earthquake

Action

No need for significant action. These tremors are typically imperceptible or barely felt.

Suggestion

Remain calm and observe. These are often harmless and not a cause for concern.

Earthquake 6 km NW of Rialto, CA (1.0 ml) (2025-07-31 15:46:03 UTC)

Magnitudo (ml)

1.0

Automatic
USGS

Summary

Intensity: 0
Tsunami: 0
ID: usgs_ci41249440

Nearest Places

Fontana Airport (historical) / 0.8 km
Birdsall Park / 1.39 km
Rialto Fire Department Station 204 / 1.73 km
Ethel Kucera Middle School / 1.89 km
Fontana Power Plant / 2.02 km

Comment

Latest Earthquake

0.8

22 km ESE of Port Alsworth, Alaska
Time: 1754048354
Depth: 12.70 km
Source: USGS (Automatic)

2.6

CYPRUS REGION
Time: 1754048171
Depth: 42.90 km
Source: EMSC (Automatic)

2.0

WESTERN TURKEY
Time: 1754047983
Depth: 7.00 km
Source: EMSC (Automatic)

2.3

12 km SSE of Fern Forest, Hawaii
Time: 1754047951
Depth: 4.85 km
Source: USGS (Automatic)

2.3

ISLAND OF HAWAII, HAWAII
Time: 1754047951
Depth: 4.80 km
Source: EMSC (Automatic)

Nearest Earthquake

0.3

5 km WSW of Anza, CA
Time: 1754043061
Depth: 5.43 km
Source: USGS (Automatic)

1.1

7 km NNE of Fontana, CA
Time: 1754042476
Depth: 5.99 km
Source: USGS (Automatic)

0.9

6 km NW of Rialto, CA
Time: 1754036945
Depth: 5.16 km
Source: USGS (Automatic)

1.3

7 km SSW of Devore, CA
Time: 1754035365
Depth: 5.66 km
Source: USGS (Automatic)

1.0

7 km NNE of Fontana, CA
Time: 1754035348
Depth: 7.19 km
Source: USGS (Automatic)