Earthquake record › M1.0 – M1.9

M1.0 – M1.9 in the Sealed USGS Record

4,864 events sealed in the M1.0 – M1.9 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 An event that appeared in the feed and was superseded between two of our seals is not in this archive at all.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 3,488, reviewed 1,376. 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 4,864 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.

Get told when the record changes for your area

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
California2,123
Alaska1,014
Texas629
Hawaii375
New Mexico223
Nevada111
Washington87
Oklahoma61
Utah59
Puerto Rico57
Oregon20
Montana19
Tennessee9
Arkansas8
Wyoming6
Missouri4
Idaho2
North Carolina2
Arizona1
South Carolina1

53 of 4,864 events in this range carry a place tail outside our US map and are left unassigned.

Largest in this range

MagnitudePlace, as publishedReview statusSeal
M1.997 km S of Brawley, CAautomatic2026-07-23
M1.9917 km WSW of Johannesburg, CAautomatic2026-07-02
M1.9918 km NNE of Indio, CAautomatic2026-07-03
M1.9919 km WSW of Johannesburg, CAreviewed2026-07-14
M1.992 km E of Honaunau-Napoopoo, Hawaiiautomatic2026-07-17
M1.9914 km SSW of Honoka‘a, Hawaiiautomatic2026-08-08
M1.993 km SE of Aromas, CAautomatic2026-07-22
M1.9915 km NE of New Idria, CAautomatic2026-07-25
M1.9916 km S of Bridgeport, CAautomatic2026-07-30
M1.9922 km NE of San Ardo, CAautomatic2026-08-05
M1.992 km S of Indios, Puerto Ricoreviewed2026-06-27
M1.995 km SE of La Parguera, Puerto Ricoreviewed2026-07-08
M1.993 km S of Guánica, Puerto Ricoreviewed2026-07-21
M1.998 km SSE of Etowah, Tennesseereviewed2026-08-04
M1.9924 km SSW of Silver Gate, Montanareviewed2026-08-06
M1.993 km NNW of Orange, CAautomatic2026-07-08
M1.984 km SE of Loma Linda, CAreviewed2026-07-27
M1.9844 km ENE of Ensenada, B.C., MXautomatic2026-07-11
M1.9817 km S of Volcano, Hawaiiautomatic2026-06-28
M1.986 km SSE of Pāhala, Hawaiiautomatic2026-07-21
Days we did not seal. 45 seals span 47 calendar days, so these days inside the span have no sealed copy: 2026-07-04, 2026-07-15. 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). 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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