Earthquake record › seal of 2026-08-12

The USGS Feed as Sealed on 2026-08-12

282 events, exactly as the feed presented them at the moment we read it. Values on this page are what USGS asserted on this date — some of them have since been revised, and this page deliberately does not follow those revisions.

← 2026-08-11 · 2026-08-13 →

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 An event that appeared in the feed and was superseded between two of our seals is not in this archive at all.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.

No event in this seal had appeared in an earlier one. Every event here was first seen on this date.

Review status as sealed: reviewed 148, automatic 134. 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.

By magnitude

MagnitudeEvents
Below M1.066
M1.0 – M1.9129
M2.0 – M2.949
M3.0 – M3.916
M4.0 – M4.915
M5.0 and above7
No magnitude published0

24 of 282 events in this seal 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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Largest events in this seal

MagnitudePlace, as publishedReview statusSeal
M6.00South Sandwich Islands regionreviewed2026-08-12
M5.2042 km ESE of Naalehu, Hawaiireviewed2026-08-12
M5.1051 km E of Tobelo, Indonesiareviewed2026-08-12
M5.10Pacific-Antarctic Ridgereviewed2026-08-12
M5.00107 km WNW of Kerema, Papua New Guineareviewed2026-08-12
M5.0089 km ESE of Kokopo, Papua New Guineareviewed2026-08-12
M5.0066 km E of Chayek, Kyrgyzstanreviewed2026-08-12
M4.90149 km SSE of Port Blair, Indiareviewed2026-08-12
M4.9014 km WSW of Honmachi, Japanreviewed2026-08-12
M4.8081 km ENE of Mutsu, Japanreviewed2026-08-12
M4.70167 km SSW of Abepura, Indonesiareviewed2026-08-12
M4.607 km W of Lunca Jariștei, Romaniareviewed2026-08-12
M4.60Western Australiareviewed2026-08-12
M4.60118 km ESE of Neiafu, Tongareviewed2026-08-12
M4.6014 km NE of Wana, Pakistanreviewed2026-08-12
M4.50125 km NNW of Ambon, Indonesiareviewed2026-08-12
M4.4091 km SSW of Corinto, Nicaraguareviewed2026-08-12
M4.4031 km SSW of Pondaguitan, Philippinesreviewed2026-08-12
M4.30south of the Fiji Islandsreviewed2026-08-12
M4.204 km WNW of Radwanice, Polandreviewed2026-08-12

Where they were, as USGS wrote it

State or territoryEvents
California125
Alaska57
Hawaii23
Texas17
Puerto Rico7
Oklahoma6
Utah6
the U.S. Virgin Islands6
Nevada5
New Mexico4
Washington3
Missouri2
Tennessee1

20 of 282 events in this seal carry a place tail we do not map to a US state — most of them are outside the US. They are counted here and left unassigned rather than guessed at.

How this seal was collected

SealWe read atSource last modifiedHTTPSource
2026-08-122026-08-12T13:44:00+00:00Wed, 12 Aug 2026 13:43:54 GMT200source file
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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