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)
2 earthquakes in the past 24 hours
4 earthquakes in the past 7 days
15 earthquakes in the past 30 days
152 earthquakes in the past 365 days
The largest earthquake in Alton, Illinois:
Past 24 Hours: M2.2 - 6 km ENE of Steele, Missouri
Past 7 Days: M2.2 - 6 km ENE of Steele, Missouri
Past 30 Days: M2.5 - 4 km ESE of Brownington, Missouri
Past 365 Days: M4.0 - 1 km WNW of Cooter, Missouri
Recent Earthquakes
- M2.2
13 hours ago
|Depth: 8.77 km - M1.8
9 km N of New Madrid, Missouri
15 hours ago
|Depth: 11.76 km - M1.9
9 km N of New Madrid, Missouri
5 days ago
|Depth: 8.19 km - M2.0
7 km SSE of Ridgely, Tennessee
6 days ago
|Depth: 8.73 km - M2.5
4 km ESE of Brownington, Missouri
2 weeks ago
|Depth: 10.64 km
Seismic Activity Analysis
This card summarizes recent seismic activity, trends, and swarm detection for this region.
Recent Activity
Moderate Activity(4 earthquakes in 7 days)
Activity Trend
Increasing(Last 7d: 4, Prev 7d: 2)
Swarm Detection
No significant swarms detected in the last 24 hours
Nearby Areas
Explore earthquake activity in surrounding areas