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, 9 earthquakes of M1.5 or bigger were recorded within 100 km of Portola, the biggest of them M2.4. Over the past year, M3.0+ quakes near Portola came at 0.9× the usual pace — quieter than normal for this area. The biggest quake on record near Portola — records go back to 1980 — was the M5.7 of May 24, 2013, 03:47 UTC: 2 km NNE of Canyondam, California.
How we figure this: 7 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 7.7 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 Portola
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M2.1 | 9 km SE of Dollar Point, CA | Nov 02, 2026, 04:13 AM | 5 km | 85 km SSE |
| M2.1 | 3 km S of East Shore, CA | Oct 29, 2026, 08:09 AM | 1 km | 68 km NW |
| M1.7 | 13 km SW of Chester, CA | Oct 29, 2026, 03:15 AM | 0 km | 87 km WNW |
| M1.8 | 11 km W of Wadsworth, Nevada | Oct 27, 2026, 09:43 AM | 10 km | 91 km E |
| M1.4 | 2 km N of Canyondam, CA | Oct 17, 2026, 05:50 AM | 1 km | 67 km NW |
| M1.9 | 2 km N of Canyondam, CA | Oct 17, 2026, 01:48 AM | 2 km | 67 km NW |
| M2.3 | 9 km N of Belden, CA | Oct 13, 2026, 06:11 AM | 10 km | 75 km WNW |
| M1.4 | 3 km SW of Tahoe Vista, CA | Oct 12, 2026, 06:40 PM | 4 km | 74 km SSE |
| M1.8 | 3 km NE of Dollar Point, CA | Oct 12, 2026, 10:22 AM | 5 km | 75 km SSE |
| M2.3 | 6 km ESE of Mogul, Nevada | Oct 10, 2026, 11:07 PM | 11 km | 63 km SE |
Earthquakes per year near Portola (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 Portola
Every quake of M1.5 or bigger within 100 km over the last year — 256 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 8 biggest earthquakes on record near Portola (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.7 | 2 km NNE of Canyondam, California | May 24, 2013, 03:47 UTC | 66 km |
| M5.5 | Lake Almanor Earthquake | May 11, 2023, 23:19 UTC | 70 km |
| M5.2 | 3 km N of Blairsden, California | Aug 10, 2001, 20:19 UTC | 13 km |
| M5.2 | 4km NW of Canyondam, CA | May 12, 2023, 10:18 UTC | 69 km |
| M5.1 | 1 km NW of Mogul, Nevada | Apr 26, 2008, 06:40 UTC | 55 km |
| M5.1 | 8 km SSW of Kingvale, California | Nov 28, 1980, 18:21 UTC | 62 km |
| M4.9 | 15 km NNW of Susanville, CA | Dec 31, 2025, 05:49 UTC | 84 km |
| M4.9 | 1km NNW of Canyondam, CA | May 24, 2013, 08:02 UTC | 66 km |
Nearby places
East Quincy, CA (39 km) · Downieville, CA (41 km) · Quincy, CA (43 km) · Cold Springs, NV (45 km)
USGS data fetched Nov 03, 2026, 23:45 UTC · page built Nov 03, 2026, 23:45 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.