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Los Angeles County Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Los Angeles County is much higher than California average and is much higher than the national average. The risk of tornado damage in Los Angeles County is higher than 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, #3

Los Angeles County
43.35
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, #47

Los Angeles County
0.0004
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, #2

Los Angeles County
36.86
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 1,863 other weather extremes events within 50 miles of Los Angeles County were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:0Cold:5Dense Fog:4Drought:31
Dust Storm:5Flood:580Hail:106Heat:7Heavy Snow:1
High Surf:5Hurricane:0Ice Storm:0Landslide:1Strong Wind:113
Thunderstorm Winds:188Tropical Storm:0Wildfire:292Winter Storm:2Winter Weather:1
Other:522 

Volcanos Nearby

A total of 2 volcanoes are found in or near Los Angeles County.

Distance (miles)NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
100.7Lavic LakeUS-California, United States34.75-116.6251495Volcanic fieldHoloceneUndated, but probable Holocene eruption
129.0Coso Volc FieldUS-California, United States36.03-117.822400Lava domeHoloceneUnknown

Historical Earthquake Events

A total of 207 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Los Angeles County.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
16.71971-02-096.4834.41-118.4
45.51933-03-116.3N/A33.58-117.98
42.71973-02-215.9834.1-119
28.81941-11-145.41633.78-118.25
29.71933-10-025.4N/A33.78-118.13
41.51970-09-125.4834.27-117.54
16.71971-02-095.3834.41-118.4
28.21930-08-315.3N/A33.9-118.6
32.51933-03-135.3N/A33.75-118.08
13.31971-02-095.2634.31-118.45
29.31979-01-015.11133.95-118.68
21.11952-08-235N/A34.5-118.22
26.11941-10-224.91633.82-118.22
42.11933-03-154.9N/A33.62-118.02
10.71971-02-094.81434.34-118.33
17.41977-08-124.81034.38-118.47
17.31971-02-214.7734.4-118.44
20.21929-07-084.7N/A34-118
30.11940-10-114.7N/A33.78-118.42
41.81948-03-014.71634.17-117.53
42.31948-04-164.71634.02-118.97
45.41982-05-254.71433.54-118.21
16.11971-03-314.6234.29-118.52
25.61976-04-084.61534.35-118.67
32.81956-02-074.6N/A34.58-118.6
39.61978-04-294.6533.83-117.73
40.21965-01-014.6N/A34-117.6
40.21965-02-254.6N/A34-117.6
43.41984-10-264.61334.02-118.99
45.51963-09-144.6N/A33.54-118.34
15.51971-03-074.5334.35-118.46
16.51971-02-214.5734.39-118.43
18.21971-02-104.5634.43-118.41
22.71944-06-194.5N/A33.87-118.22
23.91965-07-164.5N/A34.4-118.6
29.41979-10-174.5633.9-118.63
29.71939-12-274.5N/A33.78-118.13
40.11969-05-054.5N/A34.3-117.57
44.01965-04-154.5N/A34.1-117.5
48.41936-02-234.51034.12-117.42
41.01970-09-134.4834.28-117.55
15.31971-02-104.3534.41-118.33
16.71971-02-104.31034.4-118.42
18.61933-10-254.3N/A33.95-118.13
26.61969-02-284.3N/A34.56-118.11
27.01969-02-284.3N/A34.57-118.12
37.41963-08-224.3N/A33.7-118
39.31961-10-204.3N/A33.67-118
40.61961-10-204.3N/A33.65-118
16.81971-03-254.2534.36-118.48
17.31971-04-014.2734.41-118.42
18.91971-04-154.2434.27-118.58
20.61971-02-094.2134.46-118.43
20.91977-09-244.2534.47-118.42
26.91976-01-014.2633.97-117.88
41.21982-04-134.21734.05-118.96
41.81979-10-194.2734.2-117.53
42.81965-12-114.2N/A34.7-118.7
46.61983-01-084.2834.13-117.45
47.81984-06-124.21234.54-118.99
10.71971-02-094.11134.34-118.33
13.41971-03-304.1334.3-118.46
17.41950-01-114.1133.95-118.2
19.81941-01-304.11633.97-118.05
21.91967-06-154.1N/A33.99-117.97
28.91979-01-014.1233.95-118.67
29.91946-02-244.11634.4-117.8
37.81961-10-044.1N/A33.85-117.75
38.91961-10-204.1N/A33.67-118.02
39.31961-10-204.1N/A33.67-118
42.71970-09-124.1834.27-117.52
47.71960-06-284.1N/A34.13-117.43
49.71965-07-164.1N/A34.1-117.4
12.21971-02-104134.37-118.3
12.41971-04-254234.37-118.32
12.41964-08-304N/A34.25-118.47
13.81971-02-0941234.36-118.4
16.11971-06-214434.27-118.53
16.41971-04-024334.28-118.53
22.81933-11-134N/A33.87-118.2
29.71933-11-204N/A33.78-118.13
31.21933-08-044N/A33.75-118.18
31.31933-05-164N/A33.75-118.17
35.91982-12-304N/A33.96-118.82
38.71961-11-204N/A33.68-118
38.71961-11-204N/A33.68-118
38.81936-08-2241633.77-117.82
39.11961-10-204N/A33.68-117.98
39.81961-10-204N/A33.67-117.98
39.81961-10-204N/A33.67-117.98
42.11933-10-024N/A33.62-118.02
44.11941-04-1141633.9-117.58
44.31973-02-2241734-119
45.21941-03-2541634.22-117.47
46.01950-01-2441634.67-118.83
46.21985-04-0342834.38-119.04
46.51978-08-114434.15-117.45
48.41936-02-2641034.12-117.42
14.91971-02-093.9734.3-118.49
15.91971-03-073.9534.38-118.43
15.91971-02-093.9734.35-118.47
18.61976-10-173.91534.45-118.37
20.71971-02-153.91334.47-118.41
25.41981-06-123.91534.36-118.66
25.81933-04-293.9N/A33.83-118.17
34.01979-08-283.9934.42-117.73
37.91981-07-293.9133.8-118.72
42.61980-09-093.9533.58-118.3
15.91971-02-143.8134.3-118.51
16.71971-02-093.8834.41-118.4
18.01983-03-013.8633.94-118.32
18.81972-02-253.81334.43-118.43
26.61976-11-223.8233.95-118.62
28.01975-01-133.8N/A33.82-118.08
29.01941-10-223.81633.78-118.2
35.41978-09-033.8633.95-117.72
35.81961-11-133.8N/A34.02-118.85
36.21960-08-203.8N/A33.68-118.37
39.81961-10-203.8N/A33.67-117.98
41.81960-02-243.8N/A34-117.57
41.91967-01-083.8N/A33.6-118.4
48.11960-08-213.8N/A34.18-117.42
14.21973-08-203.7834.4-118.3
16.41971-03-283.7634.36-118.47
16.51971-02-203.7634.26-118.54
17.61972-02-023.71234.41-118.43
19.51973-01-273.7834.4-118.5
20.51964-02-083.7N/A34.2-118.62
29.41971-03-023.71233.93-117.86
29.71979-01-013.7633.93-118.67
30.31979-03-053.71333.95-118.7
30.31979-01-023.7633.95-118.7
30.51979-01-153.71033.97-118.72
34.81984-10-153.7233.7-118.16
35.51947-10-133.7N/A33.85-118.72
39.21981-07-303.7233.79-118.74
42.21967-02-213.7N/A33.8-117.7
44.31973-03-173.7834-119
46.61965-10-103.7N/A34.13-117.45
47.91966-09-023.7N/A34.11-117.43
16.11973-09-243.6834.4-118.4
16.41972-02-083.6934.4-118.41
17.31972-10-213.6934.41-118.42
18.01971-05-013.6534.43-118.4
19.21948-02-203.61633.92-118.22
21.31971-01-053.6834.04-117.94
22.71978-10-293.6334.32-118.63
23.61948-05-243.61633.92-118.02
24.01966-12-263.6N/A33.99-118.6
26.71948-07-183.61634.07-117.82
27.91959-08-233.6N/A34.13-117.78
28.41985-10-313.6334.47-117.89
32.11983-01-283.61333.94-118.73
32.31950-01-193.61633.75-118.43
32.41969-06-223.6N/A33.92-118.72
38.31981-07-303.6833.8-118.73
40.71970-09-123.6834.22-117.55
42.21973-10-233.6833.8-117.7
47.21967-10-143.6N/A34.13-117.44
11.41971-02-253.5234.34-118.36
11.61971-02-173.5534.36-118.31
14.01971-06-013.51734.37-118.39
14.61971-02-243.5334.4-118.33
15.11936-03-013.51633.98-118.3
16.11966-10-023.5N/A33.97-118.33
16.11973-02-053.5834.4-118.4
16.71971-02-093.5834.41-118.4
17.11971-02-163.51334.29-118.54
17.51970-03-013.5833.98-118.42
17.61971-12-243.5834.41-118.43
17.71971-02-213.5634.4-118.45
17.71945-02-063.51633.95-118.35
18.61983-04-163.5634.35-118.53
19.41981-02-273.51634.17-118.6
22.01950-05-133.51633.88-118.31
22.11932-01-313.51633.88-118.32
25.01941-08-103.51634.02-117.88
25.11933-08-293.5N/A33.87-118.07
27.01967-07-123.5N/A34.49-117.95
27.51973-03-213.5933.8-118.3
27.71941-02-203.51634.52-118.55
29.41933-10-053.5N/A33.77-118.27
29.71959-08-033.5N/A34-117.8
31.21978-06-043.5633.92-117.83
34.31932-10-213.51633.7-118.3
34.51966-06-133.5N/A33.75-117.99
36.81943-10-293.51633.78-117.86
39.21972-11-253.5834.02-117.61
39.31961-10-213.5N/A33.67-118
39.41969-10-143.5N/A34.33-117.59
39.51941-06-043.51633.75-117.83
40.01961-10-203.5N/A33.67-117.97
41.01961-10-213.5N/A33.67-117.93
41.41970-09-123.5834.26-117.54
41.91971-07-023.5834.25-117.53
42.31948-04-173.51634.02-118.97
43.81941-11-103.51633.6-118
44.31973-03-163.5834-119
44.31973-03-053.5834-119
45.21965-02-193.5N/A34.18-117.47
45.21972-10-083.5834.22-117.47
45.41969-04-133.5N/A33.54-118.32
46.21941-12-233.51533.57-117.98
46.21936-09-083.51633.57-117.98
48.11967-01-083.5N/A33.5-118.3
48.71967-01-083.5N/A33.5-118.4
49.71973-04-113.5834.1-117.4

Historical Tornado Events

A total of 6 historical tornado events that had recorded magnitude of 2 or above found in or near Los Angeles County.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
10.81982-11-09234°11'N / 118°27'W1.00 Mile150 Yards002.5M0Los Angeles
13.61983-03-01233°59'N / 118°22'W34°03'N / 118°21'W3.50 Miles100 Yards03025.0M0Los Angeles
20.61966-11-07233°54'N / 118°18'W0.10 Mile33 Yards003K0Los Angeles
22.21966-11-07233°51'N / 118°20'W33°54'N / 118°10'W10.30 Miles50 Yards010250K0Los Angeles
26.31982-11-09233°47'N / 118°12'W33°53'N / 118°03'W10.00 Miles1300 Yards002.5M0Los Angeles
42.61966-11-07233°39'N / 117°55'W0.20 Mile33 Yards003K0Orange


* 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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