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Earthquake Early Warning System

Chrome Web Store listing by Brandon Nozaki Miller

A Chrome extension with 2 000 users, a small but real audience.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
2 000
Rating
3.9 (78 ratings)
Users, last 17 days
-1k
Rating, last 30 days
Not watched long enough to say
Version
0.0.0.1
Updated in the store
2014-01-06
Published
2014-01-06
Manifest
V2
Browser access
7 permissions

How it has moved

Users
-1k since 01.09
2k-3k · 3 readings
  1. 2026-09-013k
  2. 2026-09-082k
  3. 2026-09-172k
Rating
unchanged since 01.09
reviewsrating 3.95 · 3 readings
  1. 2026-09-01reviews78rating3.95
  2. 2026-09-08reviews78rating3.95
  3. 2026-09-17reviews78rating3.95
Users
-1k since 01.09
2k-3k · 3 readings
  1. 2026-09-013k
  2. 2026-09-082k
  3. 2026-09-172k
Rating
unchanged since 01.09
reviewsrating 3.95 · 3 readings
  1. 2026-09-01reviews78rating3.95
  2. 2026-09-08reviews78rating3.95
  3. 2026-09-17reviews78rating3.95

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Declares http://earthquake.usgs.gov/earthquakes/feed/*
  • Declares https://*.google.com/*
  • Declares https://*.googleapis.com/*
Show the remaining 4
  • Declares https://*.gstatic.com/*
  • Show you notifications notifications
  • Store data in your browser storage
  • Speak text out loud tts

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Brandon Nozaki Miller publishes 3 listings we track, 3k users between them. Listed website: diginow.it.

  1. Diginow Serial Terminal Brandon Nozaki Miller · Productivity · Developer · published 2013-12-22 786 users ★ 2.2
  2. My Cloud9 Brandon Nozaki Miller · Productivity · Developer · published 2013-08-25 441 users ★ 4.3

Like this one

Listings the catalog judges closest in what they say they do.

  1. JQ Alert Describes nearly the same job, smaller audience 1k users ★ 3.8
  2. Earthquake Today - Realtime Alerts Describes nearly the same job, smaller audience 265 users ★ 5.0
  3. P2P地震情報アラート Describes nearly the same job, smaller audience 101 users
  4. Earthquake (ALERT) Describes nearly the same job, smaller audience 166 users
  5. EQnotifier Describes nearly the same job, smaller audience 1k users ★ 4.6

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.