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Walnut Bottom, PA Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Walnut Bottom is about the same as Pennsylvania average and is much lower than the national average. The risk of tornado damage in Walnut Bottom is about the same as Pennsylvania average and is lower than the national average.

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

Earthquake Index, #1129

Walnut Bottom, PA
0.04
Pennsylvania
0.17
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, #1

Walnut Bottom, PA
0.0000
Pennsylvania
0.0000
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, #1117

Walnut Bottom, PA
112.57
Pennsylvania
109.77
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 3,516 other weather extremes events within 50 miles of Walnut Bottom, PA were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:3Cold:28Dense Fog:18Drought:22
Dust Storm:0Flood:487Hail:549Heat:52Heavy Snow:66
High Surf:0Hurricane:0Ice Storm:23Landslide:0Strong Wind:72
Thunderstorm Winds:1,890Tropical Storm:2Wildfire:1Winter Storm:66Winter Weather:48
Other:189 

Volcanos Nearby

No volcano is found in or near Walnut Bottom, PA.

Historical Earthquake Events

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

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
48.81964-05-124.53340.2-76.5

Historical Tornado Events

A total of 40 historical tornado events that had recorded magnitude of 2 or above found in or near Walnut Bottom, PA.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
6.01961-04-16340°03'N / 77°31'W00250K0Cumberland
13.61976-03-21239°56'N / 77°15'W1.00 Mile50 Yards0025K0Adams
20.01989-06-20240°22'N / 77°30'W2.00 Miles23 Yards0125K0Perry
20.01980-06-07240°01'N / 77°04'W40°02'N / 77°01'W2.30 Miles800 Yards002.5M0Adams
21.81955-08-19240°24'N / 77°23'W0025K0Chester
23.01980-06-07240°02'N / 77°01'W40°02'N / 76°57'W3.30 Miles33 Yards002.5M0York
23.41980-06-07339°56'N / 77°01'W1.50 Miles400 Yards00250K0Adams
24.51992-10-09240°07'N / 76°57'W2.00 Miles100 Yards002.5M0York
24.61954-04-25239°50'N / 77°14'W39°48'N / 76°59'W13.30 Miles500 Yards0025K0Adams
25.91967-09-21240°25'N / 77°11'W0.10 Mile30 Yards00250K0Perry
28.01983-05-22339°42'N / 77°14'W39°43'N / 77°12'W1.00 Mile37 Yards0025K0Carroll
28.11983-05-22339°42'N / 77°15'W39°42'N / 77°14'W1.00 Mile37 Yards0025K0Frederick
28.81985-07-31240°10'N / 76°54'W40°09'N / 76°51'W3.00 Miles20 Yards02250K0Lancaster
30.01978-08-28239°48'N / 77°02'W39°45'N / 77°00'W3.30 Miles20 Yards003K0Adams
32.62001-09-24239°44'N / 76°59'W39°48'N / 76°56'W5.00 Miles200 Yards00900K0York
 Brief Description: A tornado touched down near Grand Valley Road at 17:33 EST about 5 miles South of Hanover PA. The tornado proceded northward, through Parkville then lifting to the north of Blooming Grove at 17:40 EST. The path of the tornado was about 5 miles in length but not always on the ground while the width varied from 50 to 200 yards. The top wind speeds were estimated at 110 to 120 mph. There were no injuries or deaths. Significant damage included 8 homes with roofs torn off, brick and structural damage to several additional homes, 50 to 75 trees knocked down, 38 cars damaged at a car dealership, significant roof and water damage to a middle school and administration building, and significant structural damage to a store complex northwest of Blooming Grove.
32.61977-04-05240°15'N / 76°50'W2.00 Miles67 Yards012.5M0Dauphin
32.91990-06-08239°49'N / 76°54'W1.00 Mile60 Yards01250K0York
33.01978-08-28239°45'N / 77°00'W39°43'N / 76°59'W1.90 Miles33 Yards003K0York
33.11952-04-05339°48'N / 76°59'W39°57'N / 76°43'W17.50 Miles33 Yards042.5M0York
36.31970-03-26240°16'N / 76°46'W2.50 Miles50 Yards00250K0Dauphin
37.61952-07-23240°37'N / 77°34'W0425K0Mifflin
37.71969-07-27240°04'N / 76°42'W0.30 Mile100 Yards00250K0York
38.01956-06-13239°57'N / 76°43'W0225K0York
38.31963-03-27240°00'N / 76°51'W40°03'N / 76°32'W17.00 Miles20 Yards0025K0York
39.41991-05-06240°05'N / 76°40'W1.00 Mile100 Yards03250K0Lancaster
40.91967-10-18240°13'N / 76°45'W40°19'N / 76°36'W10.20 Miles30 Yards011250K0Dauphin
41.01979-05-23239°35'N / 77°00'W2.00 Miles150 Yards002.5M0Carroll
41.51978-08-28239°43'N / 76°59'W39°34'N / 76°47'W14.80 Miles33 Yards000K0Frederick
42.31970-07-02240°09'N / 76°37'W1.00 Mile1760 Yards0025K0Lancaster
43.01989-11-20240°37'N / 77°49'W40°39'N / 77°47'W3.50 Miles1230 Yards0025K0Huntingdon
44.21989-06-15239°58'N / 76°40'W40°02'N / 76°30'W9.00 Miles100 Yards03250K0York
44.51961-07-29239°58'N / 76°40'W39°59'N / 76°30'W8.80 Miles500 Yards002.5M0York
44.61980-04-09240°44'N / 77°19'W40°43'N / 77°17'W00250K0Snyder
45.82004-07-14340°17'N / 76°35'W40°17'N / 76°35'W7.50 Miles500 Yards0018.0M0Lebanon
 Brief Description: Thunderstorms spawned a strong F3 tornado in southern Lebanon County during the afternoon of July 14. The tornado first touched down in far western Lebanon County at 3:05 pm EDT, about 1 mile west of the town of Campbelltown. The tornado traveled east, and struck a housing development about one quarter mile south of Route 322. A total of 32 homes were destroyed, with another 37 homes sustaining significant damage. An additional 50 homes and 9 farm buildings in the area were damaged by downburst winds associated with the thunderstorm which spawned the tornado. The tornado continued along a path to the east for seven and one half miles. The tornado crossed Route 322 west of Mount Pleasant, and continued east, mainly across fields, until it lifted up about 2 miles northwest of the town of Cornwall at 3:15 pm EDT. The width of the tornado was one quarter mile. Although the tornadic damage was confined to the path described, additional damage occurred outside this path, again associated with downburst winds from the parent thunderstorm. Winds were estimated between 175 and 200 MPH, making this a strong F3 tornado on the Fujita scale. The tornado injured 24 persons, one critically. There were no deaths. The American Red Cross opened a mass care center, where over 50 people required assistance with sheltering. Between 25,000 and 30,000 customers lost power in Lebanon and Berks Counties as a result of the storms.
46.01991-09-18240°40'N / 77°49'W40°42'N / 77°47'W4.00 Miles330 Yards03250K0Huntingdon
46.21957-11-19240°18'N / 76°35'W2.00 Miles13 Yards0025K0Lebanon
47.31996-07-19339°30'N / 76°59'W39°29'N / 76°57'W2.20 Miles350 Yards035.0M20KCarroll
 Brief Description: One of the most potent tornadoes in recorded history in the state of Maryland tracked for 2 and 1/4 miles through the Mystic Kane and Four Seasons subdivisions just off state route 32 northwest of Gamber. The tornado was a strong F3 (180 mph estimated winds) with multiple vortices. Homes and trees struck by individual vortices sustained the worst damage. There were several eyewitness accounts of the tornado/funnel cloud shortly before touchdown. In all, 66 structures sustained damage. Twelve single-family homes were destroyed, five which lost most of the second story and garages. Three persons were injured. Two children were injured when the tornado blew them out of the second level of one of the homes. Their father suffered cuts and bruises when a wall partially collapsed on him while he was trying the rescue the children. Another dozen homes were deemed temporarily uninhabitable with substantial roof and siding damage. An additional 37 homes, a couple of apartments, and another barn received some damage. Many material items were sucked out of the homes, from bicycles to jewelry. Several automobiles were damaged by fallen and/or flying debris. Debris littered the ground for miles. A barn along route 32 was completely destroyed, and pieces of it were found as far away as 3.5 miles to the southeast of the barn's original location. Dozens of trees were snapped, shredded, debarked, and uprooted. Corn stalks were sucked up leaving six inch stubs as the tornado crossed a field west of route 32. A corn stalk was embedded into the wall of a house 1/2 mile away from the stalk's original location. Numerous airborne missiles (large and small) were generated, puncturing holes into homes and becoming embedded into the ground. A refrigerator was found wrapped around a mailbox. A van was dragged 50 feet, then flipped over two times. Other vehicles were also damaged.
47.41978-07-31239°24'N / 77°21'W1.50 Miles100 Yards0025K0Frederick
48.42004-09-17239°24'N / 77°33'W39°24'N / 77°39'W3.00 Miles200 Yards005K0Frederick
 Brief Description: An F2 tornado touched down in far northwest Frederick County, on the northwest edge of Catoctin Mountain Park. A thickly forested stand of hardwood trees was snapped off above the bases.
49.81950-07-05240°36'N / 76°45'W003K0Dauphin


* 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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