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, 40 earthquakes of M1.5 or bigger were recorded within 100 km of Casa de Oro-Mount Helix, the biggest of them M2.5. Over the past year, M3.0+ quakes near Casa de Oro-Mount Helix came at 0.4× the usual pace — quieter than normal for this area. The biggest quake on record near Casa de Oro-Mount Helix — records go back to 1980 — was the M5.7 of Jun 15, 2010, 04:26 UTC: 8km ESE of Ocotillo, CA.
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 18.8 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 Casa de Oro-Mount Helix
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M0.8 | 11 km SW of Borrego Springs, CA | Nov 03, 2026, 07:27 AM | 7 km | 67 km NE |
| M0.0 | 3 km WSW of Anza, CA | Nov 03, 2026, 07:27 AM | 7 km | 90 km NNE |
| M0.5 | 4 km NNW of Anza, CA | Nov 03, 2026, 07:22 AM | 14 km | 95 km NNE |
| M0.7 | 19 km ESE of Anza, CA | Nov 03, 2026, 06:50 AM | 12 km | 93 km NNE |
| M0.0 | 4 km WSW of Anza, CA | Nov 03, 2026, 06:12 AM | 6 km | 89 km NNE |
| M0.4 | 21 km SW of La Quinta, CA | Nov 03, 2026, 05:29 AM | 6 km | 96 km NNE |
| M0.1 | 4 km SW of Anza, CA | Nov 03, 2026, 05:13 AM | 6 km | 89 km NNE |
| M0.2 | 23 km S of Borrego Springs, CA | Nov 03, 2026, 03:13 AM | 14 km | 65 km ENE |
| M0.2 | 21 km SW of La Quinta, CA | Nov 03, 2026, 03:03 AM | 11 km | 97 km NNE |
| M0.6 | 21 km ESE of Anza, CA | Nov 03, 2026, 03:02 AM | 6 km | 96 km NNE |
Earthquakes per year near Casa de Oro-Mount Helix (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 Casa de Oro-Mount Helix
Every quake of M1.5 or bigger within 100 km over the last year — 428 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 8 biggest earthquakes on record near Casa de Oro-Mount Helix (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.7 | 8km ESE of Ocotillo, CA | Jun 15, 2010, 04:26 UTC | 99 km |
| M5.5 | The 1986 Oceanside, California Earthquake | Jul 13, 1986, 13:47 UTC | 88 km |
| M5.4 | 20km NNW of Borrego Springs, CA | Jul 07, 2010, 23:53 UTC | 86 km |
| M5.3 | 18km ESE of Anza, CA | Feb 25, 1980, 10:47 UTC | 90 km |
| M5.2 | 5 km S of Julian, CA | Apr 14, 2025, 17:08 UTC | 46 km |
| M5.2 | 10km ESE of Anza, CA | Jun 12, 2005, 15:41 UTC | 93 km |
| M5.2 | 20km NNW of Borrego Springs, CA | Jun 10, 2016, 08:04 UTC | 89 km |
| M5.0 | 16km ESE of Anza, CA | Oct 31, 2001, 07:56 UTC | 93 km |
Nearby places
El Cajon, CA (3 km) · Spring Valley, CA (4 km) · Rancho San Diego, CA (4 km) · San Diego, CA (19 km) · Chula Vista, CA (18 km) · Escondido, CA (41 km)
USGS data fetched Nov 03, 2026, 21:45 UTC · page built Nov 03, 2026, 21:45 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.