Recent Earthquakes Near Alton, Illinois - USGS Data
Track recent earthquakes within 200 miles of Alton, Illinois, with real-time USGS data (M1.5+). View seismic activity on our interactive map. No quakes recently? Explore other quake-prone areas.
Alton, Illinois has had: (M1.5 or greater)
0 earthquakes in the past 24 hours
2 earthquakes in the past 7 days
11 earthquakes in the past 30 days
172 earthquakes in the past 365 days
The largest earthquake in Alton, Illinois:
Past 24 Hours: No earthquakes detected
Past 7 Days: M1.9 - 6 km ENE of Steele, Missouri
Past 30 Days: M2.6 - 1 km E of Cynthiana, Indiana
Past 365 Days: M3.7 - 2 km E of Steele, Missouri
Recent Earthquakes
All
- M1.7
5 km SSE of Bertrand, Missouri
4 days ago
|Depth: 7.31 km - M1.9
6 days ago
|Depth: 8.76 km - M2.6
3 weeks ago
|Depth: 10.00 km - M2.6
2 km ESE of Cynthiana, Indiana
3 weeks ago
|Depth: 18.77 km
Seismic Activity Analysis
This card summarizes recent seismic activity, trends, and swarm detection for this region.
Recent Activity
Low Activity(2 earthquakes in 7 days)
Activity Trend
Stable(Last 7d: 2, Prev 7d: 4)
Swarm Detection
No significant swarms detected in the last 24 hours
Nearby Areas
Explore earthquake activity in surrounding areas