Earthquake record › Below M1.0

Below M1.0 in the Sealed USGS Record

4,421 events sealed in the Below M1.0 range, worldwide. The USGS all_day feed is global, so this page is global — framing it as a US figure would be a coverage claim in the wrong direction.

What this archive is, exactly. The USGS all_day feed holds the last 24 hours and is overwritten in place. We seal one dated copy of it per day. An event that appeared in the feed and was superseded between two of our seals is not in this archive at all. These pages are a record of what USGS asserted at each seal — they are not a complete catalogue of earthquakes, and nothing here should be read as one.

Review status as sealed: automatic 2,230, reviewed 2,191. An automatic value is a machine solution USGS may still revise; a reviewed value has had a human look at it. Which one you are reading matters more than the magnitude itself.

0 of 4,421 events in this range were sealed at or above M3.5 — the magnitude Texas Railroad Commission seismic-response conditions are written around. That is a count of what the feed said, not a determination about any permit, operator or well.

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USGS publishes the last day and overwrites it, then revises events in place — automatic becomes reviewed, magnitudes move, and the old value stops existing everywhere. We seal a dated copy every day. Leave your email and we'll tell you when an event in your area is revised after the fact, with what it said before.

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Where they were, as USGS wrote it

State or territoryEvents
California3,074
Alaska770
Texas218
Washington121
Utah103
New Mexico35
Montana34
Hawaii18
Wyoming13
Oklahoma12
Oregon12
Idaho1

10 of 4,421 events in this range carry a place tail outside our US map and are left unassigned.

Largest in this range

MagnitudePlace, as publishedReview statusSeal
M0.9979 km NE of Akutan, Alaskareviewed2026-08-20
M0.9910 km ENE of Coso Junction, CAreviewed2026-09-01
M0.995 km SE of Ontario, CAreviewed2026-07-21
M0.994 km S of Redlands, CAautomatic2026-07-24
M0.9914 km SW of Searles Valley, CAreviewed2026-07-26
M0.9925 km ENE of Coachella, CAautomatic2026-07-26
M0.9917 km NNE of Indio, CAautomatic2026-07-27
M0.9916 km SE of Anza, CAreviewed2026-07-28
M0.992 km WNW of Sylmar, CAautomatic2026-07-30
M0.996 km NNE of Beaumont, CAautomatic2026-08-07
M0.9910 km WSW of Grapevine, CAreviewed2026-08-13
M0.9911 km NNE of Borrego Springs, CAautomatic2026-07-08
M0.997 km S of Redlands, CAreviewed2026-07-11
M0.9925 km N of Yucca Valley, CAautomatic2026-07-12
M0.998 km NNE of Lake Arrowhead, CAautomatic2026-07-12
M0.998 km WSW of Pala, CAautomatic2026-06-24
M0.996 km ENE of Boron, CAreviewed2026-08-24
M0.9916 km WSW of Johannesburg, CAreviewed2026-08-24
M0.993 km SE of Loma Linda, CAreviewed2026-08-27
M0.9926 km WNW of Inyokern, CAreviewed2026-08-27
Days we did not seal. 69 seals span 77 calendar days, so these days inside the span have no sealed copy: 2026-07-04, 2026-07-15, 2026-08-14, 2026-08-15, 2026-08-16, 2026-08-17, 2026-08-22, 2026-08-23. A missing day means we did not read the feed. It does not mean nothing happened, and those dates return a 404 here rather than a page reading zero.
One seal is wider than the others. These dates were collected more than once: 2026-07-16 (2 runs, 00:48 and 13:42 UTC), 2026-08-18 (2 runs, 05:41 and 23:15 UTC), 2026-08-24 (12 runs, 00:43 and 11:00 UTC), 2026-08-25 (11 runs, 02:00 and 22:09 UTC), 2026-08-26 (4 runs, 00:05 and 22:05 UTC), 2026-08-27 (4 runs, 00:05 and 22:09 UTC), 2026-08-28 (4 runs, 00:05 and 22:08 UTC), 2026-08-29 (4 runs, 00:08 and 22:05 UTC), 2026-08-30 (4 runs, 00:07 and 22:05 UTC), 2026-08-31 (4 runs, 00:05 and 22:08 UTC), 2026-09-01 (4 runs, 00:06 and 22:10 UTC), 2026-09-02 (4 runs, 00:05 and 22:05 UTC), 2026-09-03 (4 runs, 00:09 and 22:09 UTC), 2026-09-04 (4 runs, 00:07 and 22:08 UTC), 2026-09-05 (4 runs, 00:08 and 22:06 UTC), 2026-09-06 (4 runs, 00:09 and 22:08 UTC), 2026-09-07 (4 runs, 00:09 and 22:05 UTC). A day with two runs covers more than 24 source-hours, so its event count is larger for a collection reason and not a seismic one. Do not read it as a busy day.

Compiled from dated copies of the U.S. Geological Survey's public all_day realtime feed (a work of the US government, in the public domain). Values are reproduced exactly as USGS published them on the date shown and may since have been revised; USGS is the authority on the current value of any event. These pages are provided for informational purposes only, carry no warranty of accuracy or completeness, and are not an earthquake warning, a safety notice, or engineering advice. Always verify against the USGS Earthquake Hazards Program before relying on any figure.

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