US Tech Automations

Other dated records Earthquake record archive 266 rows held

The earthquakes USGS changed the most after publishing

On these 266 events, four or more things moved between our first read and our second: the magnitude, the depth, the place, how it was measured, or whether a person had reviewed it yet. Reading was switched back on by a dated decision on 23 Aug 2026, after a pause, so this list can still grow. Our newest copy is 15 Oct 2026 and a newer one may follow.

Price
Not for sale
Built for
Researchers and reporters who need what USGS said on a past day
Read
About once a day. Reading again since 23 Aug 2026.
Newest sealed read
2026-10-15

Email us about the copies we holdNo card needed to ask. We reply with what we hold.

Newest sealed read: 2026-10-15. We read this source about once a day. We hold 310 sealed runs going back to 2026-06-23.

What this page is266 rows held · newest sealed read 2026-10-15

  • 266 of the 998 revisions we caught moved four or more published values at once.
  • The most changed of all is nn00925058 at 7 km N of Goldfield, Nevada: magnitude 1.54 → 1.52; depth in km 4.2016 → 0.0; place 7 km N of Goldfield, Nevada → 3 km N of Goldfield, Nevada; and 6 more values moved.
  • Every one of them sat in the live catalogue at its first value before it was replaced. The live catalogue keeps only the later value.
  • We hold 37,791 dated event records across 107 sealed days, the newest 15 Oct 2026. Reading was switched back on by a dated decision on 23 Aug 2026, after a pause, so this list can still grow.
  • We hold two or more dated copies for 11,436 of 26,355 events, and a single copy for the other 14,919. Where we hold two copies you can see what changed between them; where we hold one there is nothing to compare it with. USGS publishes this history itself, including superseded versions, so we do not charge for it.

Real rows out of our sealed copies

These are rows we read out of dated copies we keep ourselves. The live source shows today only, so once a row moves, what it said before is gone from the place you would go to look.

Four or more published values moved on each of these. 12 of 266 shown. When USGS re-picks where an event was, the latitude, the longitude, the place text and the title all move together, so the count of moved values is larger than the number of separate things USGS decided. Numbers are printed exactly as USGS published them, long decimals and all. We do not round, because the value USGS actually put out is the whole point of the archive. 23 Jun 2026 – 15 Oct 2026
USGS event idWhere USGS said it wasWhat USGS changedFirst readSecond read
nn009250587 km N of Goldfield, Nevadamagnitude 1.54 → 1.52; depth in km 4.2016 → 0.0; place 7 km N of Goldfield, Nevada → 3 km N of Goldfield, Nevada; and 6 more values moved30 Sep 20261 Oct 2026
ci413363197 km ESE of Chula Vista, CAmagnitude 0.89 → 0.75; depth in km 4.2 → -0.26; place 7 km ESE of Chula Vista, CA → 8 km ESE of Bonita, CA; and 7 more values moved21 Sep 202622 Sep 2026
us7000tbwb77 km NNW of Kodāri̇̄, Nepalmagnitude 4.4 → 5.2; depth in km 10.0 → 0.0; place 77 km NNW of Kodāri̇̄, Nepal → 55 km NW of Kodāri̇̄, Nepal; and 7 more values moved26 Aug 202627 Aug 2026
ci4153704845 km NNW of Los Algodones, B.C., MXmagnitude 1.18 → 1.31; depth in km 3.62 → -0.2; place 45 km NNW of Los Algodones, B.C., MX → 45 km NE of Holtville, CA; and 7 more values moved26 Aug 202627 Aug 2026
ci4153637614 km W of Mojave, CAmagnitude 0.97 → 1.01; depth in km -0.82 → -1.01; place 14 km W of Mojave, CA → 13 km W of Mojave, CA; and 7 more values moved25 Aug 202626 Aug 2026
ci415296483 km ENE of Rancho San Diego, CAmagnitude 1.45 → 1.44; depth in km 5.04 → -0.26; place 3 km ENE of Rancho San Diego, CA → 5 km SE of Bostonia, CA; and 6 more values moved18 Aug 202619 Aug 2026
uw71411902238 km S of Morton, Washingtonmagnitude 0.0900000036 → 0.07; depth in km -0.0900000035762787 → 2.9; place 38 km S of Morton, Washington → 38 km NNE of Amboy, Washington; and 5 more values moved13 Oct 202614 Oct 2026
ok2026uazz8 km ESE of Chickasha, Oklahomamagnitude 2.25 → 1.81; depth in km 2.804848671 → 11.1; place 8 km ESE of Chickasha, Oklahoma → 6 km NNE of Ninnekah, Oklahoma; and 6 more values moved13 Oct 202614 Oct 2026
hv750554876 km SSW of Pāhala, Hawaiimagnitude 2.25 → 1.59; depth in km 33.060001373291 → 35.28; place 6 km SSW of Pāhala, Hawaii → 5 km SW of Pāhala, Hawaii; and 6 more values moved13 Oct 202614 Oct 2026
ci413469358 km SW of Anza, CAmagnitude 0.37 → 0.04; depth in km 6.17 → 4.32; place 8 km SW of Anza, CA → 7 km SW of Anza, CA; and 6 more values moved13 Oct 202614 Oct 2026
nn0092568656 km S of Kingston, Nevadamagnitude 1.78 → 0.96; depth in km 7.8912 → 0.0; kind of event earthquake → explosion; and 6 more values moved12 Oct 202613 Oct 2026
nn0092567010 km WSW of Gerlach, Nevadamagnitude 2.05 → 2.2; depth in km 15.9797 → 7.3916; place 10 km WSW of Gerlach, Nevada → 4 km WSW of Burning Man Earth, Nevada; and 6 more values moved12 Oct 202613 Oct 2026

What this page cannot tell you

  • We can only show a change between two of our own reads. USGS can revise an event whenever it likes, so if it changed a number and changed it back between two of our reads, we never saw it and it is not on this page.
  • Each file we saved holds the last 24 hours of events, and our runs were about 24 hours apart, so two copies sealed on consecutive days usually share no event at all: only 58 of our 106 consecutive day pairs had one in common. A before and an after exists only where two runs landed closer together than usual.
  • 14,919 of the 26,355 events we hold were caught on one day only. There is no second reading to compare them with, so they cannot show a revision.
  • We ran on 14 Aug 2026, 15 Aug 2026, 16 Aug 2026, 17 Aug 2026 and the feed gave us nothing back, so there is no copy for those days. We say that rather than skipping over it.
  • 4 days inside our range have no run at all: 4 Jul 2026, 15 Jul 2026, 22 Aug 2026, 23 Aug 2026.
  • We hold what USGS published. We are not saying which reading is right. The current catalogue keeps only the later one.

See the file we hold

You do not have to take our word for what is in the file. Here are 25 rows of the real thing, carrying all 7 of its columns, cut out of the dated copies we sealed ourselves. Nothing in it is made up and nothing in it is tidied up.

  • Open the 25 rows as a CSVA plain spreadsheet file. It saves to your machine rather than painting itself into a browser tab, and it opens in Excel, Numbers or Google Sheets.
  • The same 25 rows as JSONThe same rows again, laid out for reading with code.

Nothing on this page is for sale. The sample file is free to read, and so is every row on the page above it.

These 25 rows are a slice of the file, not the whole of it. What we cannot show you here is how far back it goes: the file goes back further than these rows do.

Ask what we hold for a named event

No pay button on this one yet. Email operations@ustechautomations.com. We reply with what we hold for this one, and with what we do not hold, before you spend anything.

Email us about the copies we hold

Say that you want Events USGS changed the most and we will tell you which weeks we hold for it and since when.

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