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 Knox. The biggest quake on record near Knox — records go back to 1980 — was the M5.2 of Sep 25, 1998, 19:52 UTC: The 1998 Pymatuning, Pennsylvania Earthquake.
Latest earthquakes near Knox
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M1.7 | 5 km ENE of Orangeville, Ohio | Nov 15, 2025, 02:37 AM | 5 km | 78 km W |
| M4.0 | 3 km NW of Youngstown, Ohio | Dec 31, 2011, 03:05 PM | 5 km | 97 km W |
| M5.2 | The 1998 Pymatuning, Pennsylvania Earthquake | Sep 25, 1998, 03:52 PM | 5 km | 77 km WNW |
Earthquakes per year near Knox (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 Knox
Every quake of M1.5 or bigger within 100 km over the last year — 1 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 2 biggest earthquakes on record near Knox (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.2 | The 1998 Pymatuning, Pennsylvania Earthquake | Sep 25, 1998, 19:52 UTC | 77 km |
| M4.0 | 3 km NW of Youngstown, Ohio | Dec 31, 2011, 20:05 UTC | 97 km |
Nearby places
Marianne, PA (9 km) · Clarion, PA (13 km) · Seneca, PA (21 km) · Oil City, PA (26 km) · Grove City, PA (47 km) · Franklin, PA (31 km)
USGS data fetched Nov 03, 2026, 17:45 UTC · page built Nov 03, 2026, 17:45 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.