Johnstonville, CA Natural Disasters and Weather Extremes
The chance of earthquake damage in Johnstonville is much lower than California average and is much higher than the national average. The risk of tornado damage in Johnstonville is lower than California average and is much lower than the national average.
Earthquake Index, #855
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, #85
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, #1754
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 65 other weather extremes events within 50 miles of Johnstonville, CA were recorded from 1950 to 2010. The following is a break down of these events:
|Dust Storm:||0||Flood:||6||Hail:||18||Heat:||0||Heavy Snow:||0|
|High Surf:||0||Hurricane:||0||Ice Storm:||0||Landslide:||0||Strong Wind:||0|
|Thunderstorm Winds:||8||Tropical Storm:||0||Wildfire:||3||Winter Storm:||0||Winter Weather:||0|
A total of 9 volcanoes are found in or near Johnstonville, CA.
|Distance (miles)||Name||Region||Latitude||Longitude||Elevation (foot)||Type||Status||Last Eruption|
|21.5||Eagle Lake Field||US-California, United States||40.63||-120.83||1652||Fissure vent||Holocene||Unknown|
|47.5||Potato Butte||US-California, United States||40.63||-121.43||1532||Shield volcano||Holocene||Unknown|
|49.1||Lassen Volc Center||US-California, United States||40.492||-121.508||3187||Stratovolcano||Historical||Last known eruption 1900-1963|
|54.7||Tumble Buttes||US-California, United States||40.68||-121.55||2191||Cinder cone||Holocene||Unknown|
|56.9||Big Cave||US-California, United States||40.955||-121.365||1259||Shield volcano||Holocene||Unknown|
|59.9||Twin Buttes||US-California, United States||40.78||-121.6||1631||Cinder cone||Holocene||Unknown|
|71.0||Brushy Butte||US-California, United States||41.178||-121.443||1174||Shield volcano||Holocene||Unknown|
|83.2||Steamboat Springs||US-Nevada, United States||39.375||-119.72||1415||Lava dome||Pleistocene-Fumarol||Quaternary eruption(s) with the only known Holocene activity being hydrothermal|
|97.4||Medicine Lake||US-California, United States||41.58||-121.57||2412||Shield volcano||Radiocarbon||Last known eruption A.D. 1-1499|
Historical Earthquake Events
A total of 30 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Johnstonville, CA.
|Distance (miles)||Date||Magnitude||Depth (km)||Latitude||Longitude|
Historical Tornado Events
No historical tornado events that had recorded magnitudes of 2 or above found in or near Johnstonville, CA.
No historical earthquake events found in or near Johnstonville, CA.
* 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.