United States

Earthquakes in Arizona

USGS recorded 2 earthquakes in and around Arizona in the last 30 days and 68 in the last year, counting everything of magnitude 1.0 and above. The strongest in that year measured M 3.7.

M 1.3 · 5 km N of Cane Beds, Arizona · 2026-07-21 17:29 UTC M 3.5 · 113 km SE of Estacion Coahuila, B.C., MX · 2026-08-10 09:56 UTC

Recent earthquakes in and around Arizona

Last 30 days, newest first as of 2026-08-10 17:03 UTC

Magnitude Location Depth When (UTC)
M 3.5 113 km SE of Estacion Coahuila, B.C., MX 7.2 km deep 2026-08-10 09:56 UTC
M 1.3 5 km N of Cane Beds, Arizona 23.1 km deep 2026-07-21 17:29 UTC

The largest on record in and around Arizona

Since 1900, when the instrumental record becomes usable. The largest is M 6.5 at 6 km S of Golfo de Santa Clara, Mexico on 1966-08-07: strong: damaging in populated areas.

Largest since 1900 USGS

Magnitude Location Date Depth
M 6.5 6 km S of Golfo de Santa Clara, Mexico 1966-08-07 10.0 km deep
M 6.2 Near Flagstaff, Arizona 1906-01-25 Not recorded
M 6.2 Near Flagstaff, Arizona 1912-08-18 Not recorded
M 6.0 Southwest of Cameron, Arizona 1910-09-24 Not recorded
M 5.8 32 km S of Golfo de Santa Clara, Mexico 1969-03-21 10.1 km deep
M 5.7 50km SE of San Luis Rio Colorado, Son., MX 1954-02-01 6.0 km deep
M 5.6 21 km SE of Fredonia, Arizona 1959-07-21 Not recorded
M 5.6 48 km SE of Golfo de Santa Clara, Mexico 1966-10-09 15.0 km deep
M 5.5 41 km SSE of Golfo de Santa Clara, Mexico 1964-08-22 11.0 km deep
M 5.5 71km SE of Estacion Coahuila, B.C., MX 2020-03-07 10.0 km deep

How these numbers were counted

Counts include every earthquake of magnitude 1.0 and above that USGS located in and around Arizona. The search is a latitude and longitude rectangle covering Arizona. No region is a rectangle, so events just outside the border can appear; each row shows the location text USGS published, which names the nearest town. Full method, including why counts from different places are not comparable.

Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-08-10. Public domain.