• Thumbnail for 1983 Borah Peak earthquake
    The 1983 Borah Peak earthquake occurred on October 28, at 8:06:09 a.m. MDT in the western United States, in the Lost River Range at Borah Peak in central...
    15 KB (1,227 words) - 06:41, 17 February 2025
  • Thumbnail for Borah Peak
    office in 1940. The 1983 Borah Peak earthquake occurred on Friday, October 28, at 8:06:09 MDT in the Lost River Range at Borah Peak in central Idaho, United...
    11 KB (829 words) - 22:32, 4 January 2025
  • well-documented case of liquefaction in gravelly sands was in regard to the 1983 Borah Peak earthquake in the United States. Several investigations of that event took...
    52 KB (6,064 words) - 15:12, 2 March 2025
  • Thumbnail for Fault scarp
    November 2013). "Earthquakes in the Early Modern Era". Seismic Japan: The Long History and Continuing Legacy of the Ansei Edo Earthquake. University of...
    12 KB (1,146 words) - 09:35, 2 February 2025
  • Thumbnail for Surface rupture
    ground displacement) is the visible offset of the ground surface when an earthquake rupture along a fault affects the Earth's surface. Surface rupture is...
    10 KB (904 words) - 18:39, 2 January 2025
  • occurred. Earthquake swarms which affected the United States: 1962–71 Denver earthquake swarm Enola earthquake swarm 2008 Reno earthquakes Guy-Greenbrier...
    42 KB (1,726 words) - 17:03, 10 December 2024
  • Thumbnail for Challis High School
    Register of Historic Places in 1980. It was destroyed by the 1983 Borah Peak earthquake. It was a stone building, built of local tuff stone, which demonstrated...
    2 KB (155 words) - 04:31, 4 August 2023
  • Thumbnail for 124th Fighter Wing
    areas. Aerial photographs were also taken immediately after the 1983 Borah Peak earthquake near Challis. The Challis-Mackay region experienced rather thorough...
    16 KB (2,018 words) - 19:52, 2 September 2024
  • other. Pink Geyser is susceptible to seismic activity. Before the 1983 Borah Peak earthquake, it only erupted twice a day. Following the quake, its interval...
    3 KB (250 words) - 06:18, 5 September 2021
  • Thumbnail for Challis, Idaho
    with Highway 75 is south of Challis. On Friday, October 28, 1983, the Borah Peak earthquake occurred at 8:06 am MDT. The shock measured 6.9 on the moment...
    19 KB (1,525 words) - 12:27, 11 March 2025
  • Retrieved 3 August 2021. "M 6.9 – The 1983 Borah Peak Earthquake, Idaho". United States Geological Survey. 28 October 1983. Retrieved 3 August 2021. "M 6.8...
    46 KB (1,686 words) - 23:16, 9 December 2024
  • Thumbnail for Buster Meat Market
    Cold Storage, located at about 300 Main Ave., collapsed in the 1983 Borah Peak earthquake. In October 2017, Google Maps' Streetview photography dated June...
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  • Thumbnail for Mackay Reservoir (Idaho)
    residents fondly call "The Res". Mackay Reservoir survived the 1983 Borah Peak earthquake, despite extensive damage to the nearby towns of Mackay and Challis...
    7 KB (608 words) - 11:29, 19 September 2023
  • list compiles known earthquakes that have caused one or more fatalities since 1900. The list incorporates high-quality earthquake source (i.e., origin...
    218 KB (1,143 words) - 18:40, 14 February 2025
  • in 1980. The building collapsed, killing two children, in the 1983 Borah Peak earthquake. It was a one-story building with a stepped parapet facade, with...
    2 KB (138 words) - 04:01, 6 August 2023
  • Thumbnail for 190th Fighter Squadron
    areas. Aerial photographs were also taken immediately after the 1983 Borah Peak earthquake near Challis. The Challis-Mackay region experienced rather thorough...
    23 KB (2,472 words) - 04:18, 28 April 2024
  • Thumbnail for Mackay, Idaho
    and 19.8% of those age 65 or over. On Friday, October 28, 1983, the Borah Peak earthquake occurred at 8:06 am MDT, measured at 6.9 on the moment magnitude...
    15 KB (1,083 words) - 12:27, 11 March 2025
  • Thumbnail for Lost River Range
    explaining the effects of the magnitude 6.9 Borah Peak earthquake that hit the range on October 28, 1983. The Big Lost River Valley fell and the Lost...
    5 KB (390 words) - 14:46, 30 July 2024
  • Thumbnail for Old Faithful
    of its next eruption.[citation needed] After the Borah Peak earthquake in central Idaho in October 1983, the eruption intervals of Old Faithful were noticeably...
    12 KB (1,089 words) - 07:30, 9 March 2025
  • As its name indicates, Box Spring was a hot spring until the 1983 Borah Peak earthquake triggered activity in the spring and it began erupting. It was...
    2 KB (160 words) - 08:59, 19 August 2022
  • The M7.3 1959 Hebgen Lake earthquake in Montana had a significant sequence of aftershocks, and the shallow M7 1983 Borah Peak event was followed by four...
    15 KB (1,739 words) - 00:57, 23 January 2025
  • Borah Peak earthquake (October 28, 1983), which was followed by five other M 5+ events over the following year, and most recently a M5.0 earthquake in...
    13 KB (1,075 words) - 14:20, 3 March 2025
  • Thumbnail for Lists of 20th-century earthquakes
    This list of 20th-century earthquakes is a list of earthquakes of magnitude 6 and above that occurred in the 20th century. Sone smaller events which nevertheless...
    141 KB (3,082 words) - 21:03, 15 January 2025
  • Thumbnail for Geography of Idaho
    Idaho's highest point is Borah Peak, 12,662 ft (3,859 m), in the Lost River Range north of Mackay. In 1983, an earthquake there caused two fatalities...
    35 KB (1,734 words) - 17:22, 3 September 2024
  • Thumbnail for National Register of Historic Places listings in Custer County, Idaho
    in 1881 for Idaho governor George L. Shoup, collapsed in the 1983 Borah Peak earthquake, killing two children 10 Challis High School More images December...
    15 KB (316 words) - 05:47, 4 March 2025
  • Thumbnail for Stanley, Idaho
    6.5 earthquake 20 miles northwest of Stanley shook the town. This was the second strongest earthquake recorded in Idaho, behind the 6.9 Borah Peak earthquake...
    24 KB (1,620 words) - 12:27, 11 March 2025
  • Thumbnail for Jackson Lake Dam
    susceptible to failure in case of an earthquake of magnitude 5.5 or greater. Following the Borah Peak earthquake of 1983 in Idaho, the dam was upgraded during...
    11 KB (1,036 words) - 16:01, 19 August 2024
  • States. Microsoft Word is first released. October 28 – The 6.9 Mw  Borah Peak earthquake shook central Idaho with a maximum Mercalli intensity of IX (Violent)...
    80 KB (6,665 words) - 10:30, 3 March 2025
  • Thumbnail for Central Idaho
    Service and the Bureau of Land Management. Idaho's tallest mountain, Borah Peak, is located in this region. A large part of the Sawtooth National Recreation...
    15 KB (1,378 words) - 18:33, 14 February 2025
  • notable fault, but only major fault zones.[clarification needed] Lists of earthquakes Tectonics Yeats, R. (2012), Active Faults of the World, Cambridge University...
    25 KB (221 words) - 21:29, 9 December 2024