US Tech Automations

Other dated records Earthquake record archive 343 rows held

Earthquakes USGS later said happened somewhere else

USGS gave these earthquakes one place, then went back and gave them another. We hold both. Here are 343 named events where that happened, with the day we read each value. 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 is343 rows held · newest sealed read 2026-10-15

  • 343 of the 998 revisions we caught changed the place.
  • Where they were: California (101), Alaska (92), Texas (49), Hawaii (26).
  • We hold 37,791 dated event records covering 26,355 events. 107 of the 111 days we ran brought records back.
  • Oldest sealed copy: 23 Jun 2026. Newest one: 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 USGS publishes this history itself, including superseded versions, so we do not charge for it.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.

Events where the place changed between two of our reads. 12 of 343 shown; the file you buy carries all 343. 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 wasPlace, first readPlace, second readBetween
us6000u26f95 km NNW of Coquimbo, Chile95 km NNW of Coquimbo, Chile98 km NW of Coquimbo, Chile14 Oct 2026 → 15 Oct 2026
us6000u26c92 km NW of La Serena, Chile92 km NW of La Serena, Chile93 km NNW of Coquimbo, Chile14 Oct 2026 → 15 Oct 2026
ci413472954 km SSE of Idyllwild, CA4 km SSE of Idyllwild, CA5 km SSE of Idyllwild, CA14 Oct 2026 → 15 Oct 2026
uw71411902238 km S of Morton, Washington38 km S of Morton, Washington38 km NNE of Amboy, Washington13 Oct 2026 → 14 Oct 2026
uu8015969116 km NE of Milford, Utah16 km NE of Milford, Utah15 km NE of Milford, Utah13 Oct 2026 → 14 Oct 2026
uu8015966116 km NNE of Milford, Utah16 km NNE of Milford, Utah15 km NE of Milford, Utah13 Oct 2026 → 14 Oct 2026
ok2026uazz8 km ESE of Chickasha, Oklahoma8 km ESE of Chickasha, Oklahoma6 km NNE of Ninnekah, Oklahoma13 Oct 2026 → 14 Oct 2026
hv750554876 km SSW of Pāhala, Hawaii6 km SSW of Pāhala, Hawaii5 km SW of Pāhala, Hawaii13 Oct 2026 → 14 Oct 2026
hv7505514211 km SSE of Volcano, Hawaii11 km SSE of Volcano, Hawaii12 km SSE of Volcano, Hawaii13 Oct 2026 → 14 Oct 2026
ci413469998 km SW of Westlake Village, CA8 km SW of Westlake Village, CA8 km WSW of Westlake Village, CA13 Oct 2026 → 14 Oct 2026
ci413469358 km SW of Anza, CA8 km SW of Anza, CA7 km SW of Anza, CA13 Oct 2026 → 14 Oct 2026
av9444602866 km W of Nikolski, Alaska66 km W of Nikolski, Alaska71 km WSW of Nikolski, Alaska13 Oct 2026 → 14 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 Places USGS changed and we will tell you which weeks we hold for it and since when.

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