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Check for earthquakes near you

Here's how to check for recent earthquakes near you with ChatGPT or Claude: every quake near a city in the last 30 days from USGS, and the strongest one.

  1. 01

    Add Firecrawl to your AI

    Some sources ask you to accept their terms first, in Alexandria in your dashboard.

  2. 02

    Copy the prompt

    @Firecrawl Use Alexandria to list every earthquake within 100 miles of San Francisco in the last 30 days, and tell me the strongest one.

  3. 03

    What came back

    Claude Code (Claude Opus 5.5) sent back, word for word:

    There were 1,293 earthquakes within 100 miles of San Francisco in the last 30 days (Sept 20 – Oct 20, 2026), from the USGS catalog via Firecrawl Alexandria. The strongest was a magnitude 3.3 about 27 km west-southwest of Westley, CA.

    Strongest: M 3.32

    A magnitude 2.6 aftershock hit the same spot 19 minutes later.

    Every quake of M2.5 or higher (9 total)

    MagDate (UTC)LocationDepthFelt reports
    3.32Sep 27 14:2127 km WSW of Westley3.4 km15
    3.05Oct 15 06:067 km NW of The Geysers2.5 km1
    2.88Sep 30 21:078 km ESE of Cloverdale5.4 km15
    2.60Sep 27 14:4026 km WSW of Westley4.1 km0
    2.56Sep 23 16:002 km NW of Hollister7.4 km24
    2.54Oct 15 17:5710 km ESE of Gilroy5.1 km3
    2.53Sep 30 20:481 km SSW of Anderson Springs2.4 km6
    2.51Sep 29 16:065 km W of Yountville7.9 km51
    2.51Oct 20 16:232 km NW of The Geysers0.5 km1

    All 1,293 by size

    MagnitudeCount
    Below 08
    0.0 – 0.9714
    1.0 – 1.9530
    2.0 – 2.939
    3.0 – 3.92
    • Mostly tiny quakes: nearly all of them are microquakes below M2, many at The Geysers geothermal field. Nothing reached M4.
    • Different scales: USGS measured the M3.32 on the moment magnitude scale and most of the others on duration or local scales. Small differences, like 3.32 against 3.05, are roughly comparable, not exact.
    • Search area: a 160.9 km (100-mile) circle centred on downtown SF (37.7749, −122.4194).

    I didn't paste all 1,293 rows here. I can save the full list to a CSV if you want it.

    Sources usedRan Oct 20, 2026