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Napa Metro Area Natural Disasters and Weather Extremes

 

The chance of earthquake damage in Napa Area is much lower than California average and is much higher than the national average. The risk of tornado damage in Napa Area is about the same as California average and is much lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #20

Napa Area
8.90
California
21.80
U.S.
1.81

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, #63

Napa Area
0.0052
California
0.0068
U.S.
0.0023

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, #833

Napa Area
9.56
California
18.56
U.S.
136.45

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 665 other weather extremes events within 50 miles of Napa Area were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:1Cold:0Dense Fog:7Drought:0
Dust Storm:0Flood:212Hail:47Heat:2Heavy Snow:1
High Surf:2Hurricane:0Ice Storm:0Landslide:0Strong Wind:53
Thunderstorm Winds:50Tropical Storm:0Wildfire:14Winter Storm:4Winter Weather:0
Other:272 

Volcanos Nearby

A total of 1 volcano is found in or near Napa Area.

Distance (miles)NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
39.9Clear LakeUS-California, United States38.97-122.771439Volcanic fieldHoloceneUndated, but probable Holocene eruption

Historical Earthquake Events

A total of 63 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Napa Area.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
19.51969-10-025.7N/A38.45-122.68
19.81969-10-025.6N/A38.47-122.69
19.91969-10-025.6N/A38.46-122.69
40.01955-10-245.4N/A37.97-122.05
41.41955-05-075N/A38.93-122.87
10.61956-04-054.8N/A38.53-122.52
42.01965-09-104.8N/A38-121.9
13.81973-09-174.7238.6-122.1
37.01963-12-304.7N/A38.8-122.9
21.41968-04-254.6N/A38.48-122.72
34.71933-05-164.5N/A38.63-122.95
49.31937-03-084.5N/A37.8-122.2
24.31978-09-084.41738.64-121.91
19.21969-10-024.3N/A38.49-122.68
33.41982-05-294.3338.8-122.82
33.01984-09-224.2138.8-122.81
5.31959-12-164.1N/A38.58-122.36
33.01985-05-234.1438.8-122.81
47.41958-05-314.1N/A37.87-122
15.71969-05-084N/A38.7-122.17
24.31977-09-224538.6-122.76
25.81977-09-084738.68-122.75
28.81977-09-1141238.7-122.8
42.71977-01-0841037.9-122.18
45.21963-06-074N/A38-121.8
49.51943-11-154N/A39.22-122.23
21.01969-10-063.9N/A38.46-122.71
36.91980-12-123.9438.96-122.69
40.71951-07-243.9N/A37.92-122.27
42.51960-12-153.9N/A38.03-121.83
43.61961-08-183.9N/A37.93-122
19.11974-03-213.8238.6-122.66
22.51978-05-273.8938.54-122.74
28.21977-09-113.8938.68-122.8
28.71977-06-043.82638.2-121.97
31.71985-07-263.8238.79-122.79
40.41961-11-173.8N/A37.97-122.03
41.91969-03-133.8N/A38.03-121.85
42.51977-01-083.8937.9-122.2
44.61985-04-183.81439.11-122.03
24.61977-09-053.7838.19-122.12
28.81966-12-233.7N/A38.7-122.8
32.11979-06-173.71638.1-122.04
38.01976-07-133.71038.09-121.87
44.21962-01-243.7N/A37.87-122.25
48.51979-07-103.71737.86-121.98
25.81948-04-183.6N/A38.17-122.53
35.01970-08-313.6838.1-121.94
42.31948-01-313.6N/A37.97-121.95
43.71942-08-143.6N/A37.98-121.88
47.11961-02-163.6N/A37.83-122.22
20.21969-10-023.5N/A38.5-122.7
21.41971-10-133.51038.33-122.65
31.21977-06-173.52238.18-121.93
32.51980-02-133.5638.95-122.53
32.61985-07-263.5238.8-122.8
35.41985-03-063.5238.94-122.68
36.51977-07-193.5238.05-121.99
42.31983-06-053.51338.01-121.87
45.51979-08-133.5937.86-122.17
46.41980-04-073.5537.84-122.23
49.11961-06-273.5N/A37.8-122.23
50.01954-02-083.5N/A37.8-122.13

Historical Tornado Events

A total of 1 historical tornado event that had recorded magnitude of 2 or above found in or near Napa Area.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
31.41958-06-01238°17'N / 122°59'W38°24'N / 122°45'W15.00 Miles50 Yards0025K0Sonoma


* 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.


 
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