The map shows quakes of M1.5 and up from the last 90 days, the 8 biggest on record, and always the very latest quake — even if it was smaller than M1.5. The list below can include smaller ones the map leaves out. Tap any dot for details.
In the last 30 days, 34 earthquakes of M1.5 or bigger were recorded within 100 km of Mammoth Lakes, the biggest of them M3.0. Over the past year, M3.0+ quakes near Mammoth Lakes came at 0.2× the usual pace — quieter than normal for this area. The biggest quake on record near Mammoth Lakes — records go back to 1980 — was the M6.4 of Jul 21, 1986, 14:42 UTC: The 1986 Chalfant Valley, California Earthquake.
How we figure this: 8 quakes of M3.0 or bigger within 100 km in the last 12 months (Nov 03, 2025 – Nov 03, 2026), compared with an average of 33.9 a year across the full calendar years 2016–2025, counted the same way. This compares how often quakes happened in two past periods. It is not a forecast, and it does not mean a big earthquake is on its way — nobody can predict earthquakes.
Latest earthquakes near Mammoth Lakes
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M1.3 | 18 km SW of Toms Place, CA | Nov 03, 2026, 07:47 AM | 1 km | 25 km SSE |
| M1.6 | 16 km SW of Toms Place, CA | Nov 02, 2026, 08:44 PM | 4 km | 24 km SE |
| M1.6 | 12 km ESE of Mammoth Lakes, CA | Nov 01, 2026, 08:59 PM | 6 km | 12 km SE |
| M2.3 | 24 km ESE of Yosemite Valley, CA | Nov 01, 2026, 02:34 AM | 20 km | 32 km W |
| M2.1 | 29 km SE of Bodie, CA | Oct 31, 2026, 11:09 PM | 4 km | 47 km NNE |
| M2.7 | 32 km SE of Bodie, CA | Oct 30, 2026, 08:45 AM | 14 km | 48 km NNE |
| M2.0 | 14 km SE of Mammoth Lakes, CA | Oct 30, 2026, 08:24 AM | 8 km | 15 km SSE |
| M2.7 | 22 km SSW of Big Pine, CA | Oct 30, 2026, 06:42 AM | 5 km | 92 km SE |
| M1.3 | 18 km SW of Toms Place, CA | Oct 29, 2026, 04:58 AM | 2 km | 26 km SSE |
| M1.7 | 19 km SW of Toms Place, CA | Oct 27, 2026, 01:26 AM | 1 km | 26 km SSE |
Earthquakes per year near Mammoth Lakes (M3.0 and up, within 100 km)
M3.0–3.9 M4.0+
Each bar is one year; taller means more quakes (M3.0 and up). The dark red part is the bigger ones (M4.0+), counted inside the number above each bar — not added on top. These may be felt, depending on how far away and how deep they are. 2026 is not a full year yet — it only counts up to today. Source: USGS Earthquake Catalog.
What the last year looked like near Mammoth Lakes
Every quake of M1.5 or bigger within 100 km over the last year — 335 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 8 biggest earthquakes on record near Mammoth Lakes (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M6.4 | The 1986 Chalfant Valley, California Earthquake | Jul 21, 1986, 14:42 UTC | 48 km |
| M6.2 | 9 km SW of Aspen Springs, California | May 27, 1980, 14:50 UTC | 22 km |
| M6.1 | 4 km NNW of Round Valley, California | Nov 23, 1984, 18:08 UTC | 38 km |
| M6.1 | 8 km W of Aspen Springs, California | May 25, 1980, 19:44 UTC | 18 km |
| M6.1 | 11 km WNW of Aspen Springs, California | May 25, 1980, 16:33 UTC | 14 km |
| M6.0 | 7 km ENE of Mammoth Lakes, California | May 25, 1980, 16:49 UTC | 7 km |
| M5.9 | 18 km NNE of Mesa, California | Jul 20, 1986, 14:29 UTC | 48 km |
| M5.9 | 11 km SE of Mammoth Lakes, California | Sep 30, 1981, 11:53 UTC | 12 km |
Nearby places
Yosemite Valley, CA (54 km) · West Bishop, CA (56 km) · Dixon Lane-Meadow Creek, CA (57 km)
USGS data fetched Nov 03, 2026, 18:45 UTC · page built Nov 03, 2026, 18:45 UTC. How to read this page: recent-window counts cover M1.5+ events within 100 km; the 10-year layer is based on M3.0+ and the history layer on M4.0+ since 1980. Recording completeness varies by era and region — small quakes from early decades are under-recorded, so “no record” does not prove “never happened”. Depths are relative to sea level and can be slightly negative for shallow events in elevated terrain. Method: data & methodology.