United States – San Juan County

This page summarizes earthquakes in San Juan County (United States). The most recently recorded event was a magnitude M0.1 earthquake near San Juan County on 2026-08-13 18:10:55 UTC. All event lists and map markers are limited to the last 30 days.

Earthquakes (last 30 days)
7
Max magnitude (last 30 days)
M1.8
Avg magnitude (last 30 days)
M0.89
Avg depth (last 30 days)
13 km
Seismic activity in 2026

In 2026, San Juan County recorded 10 earthquakes within United States. The average magnitude was M1.07. The strongest event reached M2.7.

Located on the North America Plate.

Map (last 30 days)
< 2 2–4 4–5 ≥ 5
Earthquakes in San Juan County (last 30 days)
M0.1
San Juan County
2026-08-13 · 18:10 UTC · 17 km
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M0.1
Deer Harbor
2026-07-28 · 21:07 UTC · 14 km
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M0.4
San Juan County
2026-07-21 · 19:49 UTC · 12 km
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M1.2
San Juan County
2026-07-20 · 18:54 UTC · 12 km
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M1.1
San Juan County
2026-07-19 · 19:25 UTC · 12 km
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M1.7
San Juan County
2026-07-18 · 09:59 UTC · 11 km
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M1.8
San Juan County
2026-07-15 · 23:25 UTC · 13 km
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