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
1 earthquakes in the past 7 days
11 earthquakes in the past 30 days
186 earthquakes in the past 365 days
The largest earthquake in Alton, Illinois:
Past 24 Hours: No earthquakes detected
Past 7 Days: M2.2 - 13 km W of Maynard, Arkansas
Past 30 Days: M3.5 - 6 km SSW of Lerna, Illinois
Past 365 Days: M3.7 - 2 km E of Steele, Missouri
Recent Earthquakes
All
- M2.2
1 day ago
|Depth: 3.59 km - M3.3
3 weeks ago
|Depth: 9.81 km - M3.5
3 weeks ago
|Depth: 2.83 km
Seismic Activity Analysis
This card summarizes recent seismic activity, trends, and swarm detection for this region.
Recent Activity
Low Activity(1 earthquake in 7 days)
Activity Trend
Stable(Last 7d: 1, Prev 7d: 2)
Swarm Detection
No significant swarms detected in the last 24 hours
Nearby Areas
Explore earthquake activity in surrounding areas