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Palmdale, PA Natural Disasters and Weather Extremes

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

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

Earthquake Index, #448

Palmdale, PA
0.22
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

Palmdale, 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, #400

Palmdale, PA
149.40
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 3,630 other weather extremes events within 50 miles of Palmdale, PA were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:2Cold:10Dense Fog:2Drought:12
Dust Storm:0Flood:525Hail:627Heat:21Heavy Snow:45
High Surf:0Hurricane:0Ice Storm:13Landslide:0Strong Wind:34
Thunderstorm Winds:2,137Tropical Storm:1Wildfire:3Winter Storm:29Winter Weather:1
Other:168 

Volcanos Nearby

No volcano is found in or near Palmdale, PA.

Historical Earthquake Events

A total of 2 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Palmdale, PA.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
9.31964-05-124.53340.2-76.5
29.51984-04-234.4539.92-76.36

Historical Tornado Events

A total of 52 historical tornado events that had recorded magnitude of 2 or above found in or near Palmdale, PA.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
2.11957-11-19240°18'N / 76°35'W2.00 Miles13 Yards0025K0Lebanon
2.32004-07-14340°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.
3.41967-10-18240°13'N / 76°45'W40°19'N / 76°36'W10.20 Miles30 Yards011250K0Dauphin
7.81970-03-26240°16'N / 76°46'W2.50 Miles50 Yards00250K0Dauphin
10.11970-07-02240°09'N / 76°37'W1.00 Mile1760 Yards0025K0Lancaster
11.51977-04-05240°15'N / 76°50'W2.00 Miles67 Yards012.5M0Dauphin
14.51992-07-17240°24'N / 76°23'W1.00 Mile30 Yards00250K0Lebanon
14.91991-05-06240°05'N / 76°40'W1.00 Mile100 Yards03250K0Lancaster
16.11975-10-11240°17'N / 76°29'W40°10'N / 76°11'W17.50 Miles33 Yards002.5M0Lebanon
16.31985-07-31240°10'N / 76°54'W40°09'N / 76°51'W3.00 Miles20 Yards02250K0Lancaster
16.41969-07-27240°04'N / 76°42'W0.30 Mile100 Yards00250K0York
18.01953-11-23240°06'N / 76°24'W0.10 Mile20 Yards003K0Lancaster
19.11963-03-27240°00'N / 76°51'W40°03'N / 76°32'W17.00 Miles20 Yards0025K0York
19.91989-06-15240°02'N / 76°30'W40°02'N / 76°26'W4.00 Miles100 Yards03250K0Lancaster
20.11970-06-18340°24'N / 76°18'W40°24'N / 76°14'W1.90 Miles880 Yards152.5M0Lebanon
20.61989-06-15239°58'N / 76°40'W40°02'N / 76°30'W9.00 Miles100 Yards03250K0York
21.21992-10-09240°07'N / 76°57'W2.00 Miles100 Yards002.5M0York
22.01950-07-05240°36'N / 76°45'W003K0Dauphin
22.21989-06-15240°02'N / 76°26'W40°00'N / 76°24'W3.00 Miles100 Yards002.5M0Lancaster
22.31961-07-29239°58'N / 76°40'W39°59'N / 76°30'W8.80 Miles500 Yards002.5M0York
23.81961-07-29239°59'N / 76°30'W40°02'N / 76°15'W13.40 Miles500 Yards022.5M0Lancaster
24.41956-06-13239°57'N / 76°43'W0225K0York
25.01953-09-12240°40'N / 76°41'W40°39'N / 76°35'W4.70 Miles50 Yards003K0Northumberland
26.31980-06-07240°02'N / 77°01'W40°02'N / 76°57'W3.30 Miles33 Yards002.5M0York
28.31950-11-04340°12'N / 76°07'W40°16'N / 76°04'W4.70 Miles100 Yards01250K0Lancaster
29.01980-06-07240°01'N / 77°04'W40°02'N / 77°01'W2.30 Miles800 Yards002.5M0Adams
30.61967-09-21240°25'N / 77°11'W0.10 Mile30 Yards00250K0Perry
31.51952-04-05339°48'N / 76°59'W39°57'N / 76°43'W17.50 Miles33 Yards042.5M0York
32.51980-06-07339°56'N / 77°01'W1.50 Miles400 Yards00250K0Adams
32.91950-11-04340°16'N / 76°04'W40°24'N / 75°56'W11.20 Miles100 Yards00250K0Berks
36.21990-06-08239°49'N / 76°54'W1.00 Mile60 Yards01250K0York
36.51974-08-17239°57'N / 76°06'W0.70 Mile33 Yards0025K0Lancaster
37.41979-10-05240°21'N / 75°55'W1.00 Mile40 Yards0125K0Berks
38.21998-05-31239°54'N / 76°10'W39°55'N / 76°03'W7.00 Miles880 Yards0000Lancaster
 Brief Description: The tornado struck about 12:30am EDT in the early morning hours of Monday, June 1st. Initial touchdown was just south of Quarryville. The tornado traveled east along a 7 mile path to Ninepoints. Damage was most extensive in the Ninepoints area and was rated an F2 intensity (112 to 157 mph). The width of the F2 damage was probably 100 to 200 yards wide with lesser damage extending out to 1/2 mile. At least 6 homes had significant damage. One home had the roof and second floor removed. Several barns were damaged and at least one destroyed. Trees were blown down on a number of homes. One person reported sighting the tornado. Only one minor injury was reported.
39.71978-08-28240°51'N / 76°48'W40°52'N / 76°46'W0025K0Northumberland
40.62001-09-24239°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.
40.61955-08-19240°24'N / 77°23'W0025K0Chester
40.91978-08-28240°53'N / 76°52'W40°51'N / 76°48'W3.30 Miles50 Yards0125K0Snyder
41.51976-03-21239°56'N / 77°15'W1.00 Mile50 Yards0025K0Adams
41.61978-08-28239°48'N / 77°02'W39°45'N / 77°00'W3.30 Miles20 Yards003K0Adams
41.91954-04-25239°50'N / 77°14'W39°48'N / 76°59'W13.30 Miles500 Yards0025K0Adams
42.11992-08-28239°57'N / 75°58'W2.00 Miles100 Yards03250K0Chester
42.32004-09-18239°42'N / 76°22'W39°44'N / 76°22'W2.00 Miles125 Yards00350K0Harford
 Brief Description: A tornado touched down near a residence off Grier Nursery Road. The storm destroyed two mobile homes, the side of a barn was blown out, structural damage to two homes were noted, and numerous large healthy trees were twisted off near the bases.
43.51978-08-28239°45'N / 77°00'W39°43'N / 76°59'W1.90 Miles33 Yards003K0York
43.51979-09-05240°21'N / 75°48'W1.00 Mile30 Yards00250K0Berks
44.01981-07-26240°52'N / 76°15'W0025K0Schuylkill
44.31998-05-31340°29'N / 75°54'W40°29'N / 75°44'W8.30 Miles120 Yards071.4M0Berks
 Brief Description: A violent thunderstorm produced a swath of wind damage across the northern half of Berks County and included an eight mile long strong F3 (Fujita Scale) Tornado that devastated the borough of Lyons. Seven persons were injured (five within Lyons). About 40 homes were either destroyed or damaged in Lyons, Maiden Creek, Maxatawny and Richmond Townships. Preliminary damage estimates for the entire event were placed at $1.5 million dollars. About 10,250 homes and businesses lost power. The last homes to come back on line were in Lyons on June 3rd. This was the first tornado of that strength to occur in Southeast Pennsylvania and the Southern Poconos since the Limerick Tornado on July 27, 1994 and the first F3 tornado to occur within Berks County since November 4, 1950. Even before the tornado formed, the parent thunderstorm was producing wind damage in western Berks County. Wind damage started in Centre Township as several trailers were overturned in Donny Acres. In Leesport, the severe thunderstorm ripped the entire roof off one home. The couple in the house was temporarily trapped after the porch roof they use to access the stairs collapsed. The thunderstorm also ripped the roof and some bricks off a detached garage. Other houses and buildings on East Main Street also had some minor wind damage. Debris from a knitting company's air conditioning unit pelted a neighborhood. Wind damage also occurred in Ontelaunee Tonship along Pennsylvania State Route 61. The tornado made its initial touchdown just to the east of Lake Ontelaunee in Maiden Creek Township around 9 p.m. EDT and moved almost due east across Richmond Township into the borough of Lyons (about 910 p.m. EDT), across southern Maxatawny Township and lifted in northern Rockland Township and 915 p.m. EDT. The tornado was on the ground for about 8.3 miles. Its path width was around 120 yards. The tornado destruction started near U.S. Route 222 in Maiden Creek Township as the roof was blown off one farmhouse. A vehicle was also crushed by a tree. In Maxatawny Township six homes were severely damaged. One house collapsed on Smoketown Road in the Bowers area. A second house lost its roof in the Arrowhead Development. The damage increased across Richmond Township as 10 homes or farms were destroyed or damaged. Pennsylvania State Route 662 was closed between U.S Route 222 and the Fleetwood Borough line because of downed poles and trees. Parts of U.S. Route 222 were also closed because of debris on the road. One house completely collapsed. At one farm the tornado toppled a huge silo and ripped off the roofs of another silo and the barn. At another home, the remains of a large metal storage bin rested on top of the house. Golf ball size hail also damaged two vehicles and a metal awning. The same parent thunderstorm also produced straight line wind damage farther south in Ruscombmanor Township. The worst damage occurred in the borough of Lyons. The north side of the borough was destroyed. About one quarter of the borough's 550 residents were affected by the tornado. The tornado damage within this borough led to a presidential declaration of a disaster area for Berks County. About 100 residents were sheltered. The tornado cut a two block wide path along Hunter Street just north of the Conrail Tracks. About 25 homes were heavily damaged, several collapsed. Miraculously, only five persons were injured. The last two tornado related injuries occurred in northern Rockland Township as it lifted and threw a modular home from its foundation. The two men inside were injured. The tornado then lifted. Although the tornado lifted, the parent thunderstorm still produced wind damage across eastern Berks County. Noble Street was closed in Kutztown because of downed trees and lines. Trees were also uprooted in Longswamp Township. Downed limbs and wires caused power outages in District, Greenwich, Longswamp and Rockland Townships.
46.21980-04-09240°44'N / 77°19'W40°43'N / 77°17'W00250K0Snyder
46.41989-06-20240°22'N / 77°30'W2.00 Miles23 Yards0125K0Perry
47.21978-08-28239°43'N / 76°59'W39°34'N / 76°47'W14.80 Miles33 Yards000K0Frederick
47.71984-07-05240°26'N / 75°49'W40°29'N / 75°40'W7.00 Miles300 Yards022.5M0Berks
48.11984-07-05240°27'N / 75°46'W40°28'N / 75°42'W3.00 Miles300 Yards002.5M0Berks


* 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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