1.7
Micro

M 1.7 earthquake

5 km SE of Ontario, CA

Location
5 km SE of Ontario, CA
Magnitude
1.7
Depth
5.34 km
Time
10/09/2026, 21:48:51
1 hour ago
Coordinates
34.0193, -117.5867

Live updates

What has changed since this earthquake happened.

  1. Magnitude revised from M 1.6 to M 1.7 by USGS

    USGS revised this solution, changing the magnitude from M 1.6 to M 1.7, depth from 5.5 km to 5.3 km, epicentre from 34.020, -117.587 to 34.019, -117.587 and status from automatic to reviewed.

    Magnitude
    M 1.6M 1.7
    Depth
    5.5 km5.3 km
    Epicentre
    34.020, -117.58734.019, -117.587
    Status
    automaticreviewed
  2. Magnitude revised from M 1.7 to M 1.6 by USGS

    USGS revised this solution, changing the magnitude from M 1.7 to M 1.6, depth from 5.9 km to 5.5 km and epicentre from 34.018, -117.588 to 34.020, -117.587 (moved 0.2 km NE).

    Magnitude
    M 1.7M 1.6
    Depth
    5.9 km5.5 km
    Epicentre
    34.018, -117.58834.020, -117.587(moved 0.2 km NE)
  3. M 1.7 earthquake recorded near 5 km SE of Ontario, CA

    A magnitude 1.7 earthquake struck near 5 km SE of Ontario, CA at 5 km depth (34.019, -117.587), reported by USGS.

This page regenerates every few minutes while the sequence is active. Magnitudes and locations are preliminary and may be revised.

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