The map shows quakes of M1.5 and up from the last 90 days, the 2 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, 0 earthquakes of M1.5 or bigger were recorded within 100 km of Ontario, the biggest of them M1.5. The biggest quake on record near Ontario — records go back to 1980 — was the M4.9 of Feb 26, 2024, 17:25 UTC: 10 km N of Smiths Ferry, Idaho.
Latest earthquakes near Ontario
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M1.5 | 19 km ESE of Richland, Oregon | Oct 21, 2026, 04:15 AM | 2 km | 76 km N |
| M1.7 | 4 km N of Emmett, Idaho | Sep 22, 2026, 10:00 AM | -1 km | 39 km ESE |
| M2.1 | 11 km NE of Harper, Oregon | Jul 13, 2026, 12:56 PM | 6 km | 45 km WSW |
| M2.0 | 14 km NNE of Brogan, Oregon | Jun 22, 2026, 01:09 AM | 7 km | 54 km NW |
| M1.7 | 12 km WNW of Cascade, Idaho | Apr 11, 2026, 07:13 AM | 2 km | 84 km NE |
| M1.8 | 6 km N of Smiths Ferry, Idaho | Apr 08, 2026, 09:45 PM | 6 km | 78 km ENE |
| M1.8 | 27 km NW of Huntington, Oregon | Apr 08, 2026, 01:35 PM | -1 km | 71 km NW |
| M2.3 | 9 km E of Halfway, Oregon | Apr 05, 2026, 05:14 PM | 5 km | 97 km N |
| M1.9 | 26 km SW of Richland, Oregon | Nov 11, 2025, 05:51 AM | 7 km | 73 km NNW |
| M3.0 | 7 km NW of Smiths Ferry, Idaho | Aug 04, 2024, 03:45 AM | 10 km | 75 km ENE |
Earthquakes per year near Ontario (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 Ontario
Every quake of M1.5 or bigger within 100 km over the last year — 8 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 2 biggest earthquakes on record near Ontario (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.9 | 10 km N of Smiths Ferry, Idaho | Feb 26, 2024, 17:25 UTC | 79 km |
| M4.0 | 11 km SE of Halfway, Oregon | Oct 27, 1994, 03:35 UTC | 88 km |
Nearby places
Fruitland, ID (4 km) · Payette, ID (6 km) · New Plymouth, ID (13 km) · Caldwell, ID (46 km) · Middleton, ID (45 km) · Emmett, ID (41 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.