Custer, SD Natural Disasters and Weather Extremes

The chance of earthquake damage in Custer is about the same as South Dakota average and is much lower than the national average. The risk of tornado damage in Custer is lower than South Dakota average and is much lower than the national average.

Earthquake Index, #83

The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.

Volcano Index, #1

The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.

Tornado Index, #356

The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.

Other Weather Extremes Events

A total of 2,242 other weather extremes events within 50 miles of Custer, SD were recorded from 1950 to 2010. The following is a break down of these events:

Volcanos Nearby

No volcano is found in or near Custer, SD.

Historical Earthquake Events

A total of 1 historical earthquake event that had a recorded magnitude of 3.5 or above found in or near Custer, SD.

Historical Tornado Events

A total of 19 historical tornado events that had recorded magnitude of 2 or above found in or near Custer, SD.

* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.