Gresham-Barlow School District 1J Natural Disasters and Weather Extremes
The chance of earthquake damage in Gresham-Barlow School District 1J is higher than Oregon average and is lower than the national average. The risk of tornado damage in Gresham-Barlow School District 1J is higher than Oregon average and is much lower than the national average.
Earthquake Index, #12
Gresham-Barlow School District 1J | 1.54 |
Oregon | 0.62 |
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, #29
Gresham-Barlow School District 1J | 0.0311 |
Oregon | 0.0291 |
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, #12
Gresham-Barlow School District 1J | 21.39 |
Oregon | 8.38 |
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 287 other weather extremes events within 50 miles of Gresham-Barlow School District 1J were recorded from 1950 to 2010. The following is a break down of these events:
Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
Avalanche: | 0 | Blizzard: | 0 | Cold: | 0 | Dense Fog: | 0 | Drought: | 0 |
Dust Storm: | 0 | Flood: | 52 | Hail: | 36 | Heat: | 0 | Heavy Snow: | 2 |
High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 7 |
Thunderstorm Winds: | 38 | Tropical Storm: | 0 | Wildfire: | 2 | Winter Storm: | 0 | Winter Weather: | 0 |
Other: | 150 |
Volcanos Nearby
A total of 11 volcanoes are found in or near Gresham-Barlow School District 1J.
Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
31.7 | West Crater | US-Washington, United States | 45.88 | -122.08 | 1329 | Volcanic field | Radiocarbon | Last known eruption B.C. (Holocene) |
35.4 | Hood | US-Oregon, United States | 45.374 | -121.694 | 3426 | Stratovolcano | Historical | Last known eruption 1800-1899 |
42.0 | Indian Heaven | US-Washington, United States | 45.93 | -121.82 | 1513 | Shield volcano | Radiocarbon | Last known eruption B.C. (Holocene) |
50.8 | St. Helens | US-Washington, United States | 46.2 | -122.18 | 2549 | Stratovolcano | Historical | Last known eruption 1964 or later |
62.1 | Jefferson | US-Oregon, United States | 44.692 | -121.8 | 3199 | Stratovolcano | Varve Count | Last known eruption A.D. 1-1499 |
66.7 | Adams | US-Washington, United States | 46.206 | -121.49 | 3742 | Stratovolcano | Tephrochronology | Last known eruption A.D. 1-1499 |
79.6 | Sand Mountain Field | US-Oregon, United States | 44.38 | -121.93 | 1664 | Cinder cone | Radiocarbon | Last known eruption B.C. (Holocene) |
79.7 | Blue Lake Crater | US-Oregon, United States | 44.42 | -121.77 | 1230 | Maar | Radiocarbon | Last known eruption B.C. (Holocene) |
84.2 | Washington | US-Oregon, United States | 44.332 | -121.837 | 2376 | Shield volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
87.2 | Belknap | US-Oregon, United States | 44.285 | -121.841 | 2095 | Shield volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
95.8 | North Sister Field | US-Oregon, United States | 44.17 | -121.77 | 3074 | Complex volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
Historical Earthquake Events
A total of 2 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Gresham-Barlow School District 1J.
Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
24.2 | 1964-10-01 | 5.3 | N/A | 45.7 | -122.8 |
16.3 | 1962-11-06 | 4.8 | N/A | 45.63 | -122.67 |
Historical Tornado Events
A total of 3 historical tornado events that had recorded magnitude of 2 or above found in or near Gresham-Barlow School District 1J.
Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
11.3 | 1972-04-05 | 3 | 45°36'N / 122°38'W | 45°38'N / 122°27'W | 8.70 Miles | 440 Yards | 6 | 300 | 25.0M | 0 | Clark |
13.6 | 1972-04-05 | 3 | 45°36'N / 122°38'W | 45°36'N / 122°38'W | 0 | 0 | 250K | 0 | Multnomah | ||
49.0 | 2010-12-14 | 2 | 44°50'N / 122°52'W | 44°51'N / 122°49'W | 5.00 Miles | 150 Yards | 0 | 2 | 1.2M | 0K | Marion |
Brief Description: EVENT NARRATIVE: On December 14th at 11:40 AM PST, a tornado with an Enhanced Fujita Scale rating of EF2 moved northeast across the community of Aumsville, Oregon. The estimated length of the tornado path was 5 miles with a width of 150 yards. There were two minor injuries, fifty structures damaged, more than thirty large trees blown down or snapped off, five sheds damaged and two semi-trailers tipped over. The estimated value of the damage was $1.2 million. EPISODE NARRATIVE: A strong cold pool of air aloft produced a very unstable airmass over western Oregon. A vigorous low pressure center was just off the Washington Coast with a surface trough moving through western Oregon. This trough served as a focus for thunderstorms during the day. One of these thunderstorms produced a tornado that wreaked havoc on the community of Aumsville. |
* 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.