Montana earthquakes list

Last update: April 27, 2012 at 1:44 pm by By

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The list below shows the Montana earthquakes

Label info : M = magnitude, D = depth (km), Time = UTC – Montana = UTC – 7

SRC Location UTC Date/time M D INFO
USGS Lakeside, Montana Apr 14 20:12 2.9 29 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 15:12 3.3 6 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 15:07 3.1 6 MAP I Felt It INFO
USGS West Yellowstone, Montana Mar 30 13:56 2.5 7 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 13:30 3.1 4 MAP I Felt It INFO
EMSC Yellowstone Nat. Park, Montana Mar 30 12:34 4.8 5 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 12:34 4.8 5 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 12:34 4.8 6 MAP I Felt It
USGS West Yellowstone, Montana Mar 30 10:36 3.0 1 MAP I Felt It INFO
USGS West Yellowstone, Montana Mar 30 06:23 2.8 1 MAP I Felt It
USGS Three Forks, Montana Mar 28 04:45 2.5 8 MAP I Felt It
USGS West Yellowstone, Montana Mar 26 23:59 3.5 4 MAP I Felt It INFO
USGS West Yellowstone, Montana Mar 26 19:14 3.0 6 MAP I Felt It INFO
USGS Philipsburg, Montana Mar 17 00:49 2.5 4 MAP I Felt It
USGS West Yellowstone, Montana Mar 01 18:44 2.9 1 MAP I Felt It
USGS Plentywood, Montana Feb 25 22:45 3.8 5 MAP I Felt It INFO
GEOFON Montana Feb 25 22:45 4.1 10 MAP I Felt It
EMSC Eastern Montana Feb 25 22:45 3.8 5 MAP I Felt It INFO
  • Richey - My boyfriend call me at work and said, "Did you feel a tremor? The house just shoot, even the cats noticed it."
  • USGS West Yellowstone, Montana Feb 19 20:34 2.5 8 MAP I Felt It
    USGS West Yellowstone, Montana Feb 15 10:23 3.0 7 MAP I Felt It INFO
    USGS West Yellowstone, Montana Feb 11 23:03 3.5 10 MAP I Felt It INFO
    USGS West Yellowstone, Montana Feb 03 03:01 2.7 7 MAP I Felt It
    USGS West Yellowstone, Montana Jan 06 09:14 3.5 9 MAP I Felt It INFO
  • Hot Springs, MT - I was sitting on the couch and felt a very weak vibration and thought it felt like an earthquake but I talked myself out if it. A few minutes later I was sitting on the end of my bed and felt it again. I thought it felt like an earthquake but disregarded it. Later this evening I was playing on my phone and thought to check to see if any were in my area and there were at the same time I felt the vibrations.
  • USGS West Yellowstone, Montana Jan 06 09:00 2.6 6 MAP I Felt It
    USGS Lincoln, Montana Jan 06 02:05 2.8 25 MAP I Felt It
    USGS Seeley Lake, Montana Dec 24 19:25 2.6 17 MAP I Felt It
    USGS Dillon, Montana Dec 24 07:37 2.8 9 MAP I Felt It
    USGS West Yellowstone, Montana Dec 23 01:39 3.2 1 MAP I Felt It INFO
    USGS Polson, Montana Dec 18 19:57 3.1 8 MAP I Felt It INFO
    USGS West Yellowstone, Montana Nov 25 21:10 3.0 10 MAP I Felt It INFO
    USGS West Yellowstone, Montana Nov 24 07:18 3.1 11 MAP I Felt It INFO
    USGS West Yellowstone, Montana Nov 23 23:03 2.9 11 MAP I Felt It
    USGS West Yellowstone, Montana Nov 23 20:47 3.3 11 MAP I Felt It INFO
    USGS West Yellowstone, Montana Nov 23 20:38 2.6 11 MAP I Felt It
    USGS West Yellowstone, Montana Nov 23 20:23 2.8 11 MAP I Felt It
    USGS Whitehall, Montana Nov 23 14:15 2.7 10 MAP I Felt It
    USGS West Yellowstone, Montana Nov 20 02:32 3.1 7 MAP I Felt It INFO
    USGS Dillon, Montana Nov 03 17:40 2.6 0 MAP I Felt It
    USGS West Yellowstone, Montana Sep 24 10:24 2.8 9 MAP I Felt It
    USGS Virginia City, Montana Sep 21 17:08 2.6 0 MAP I Felt It
    USGS West Yellowstone, Montana Sep 13 12:58 2.9 8 MAP I Felt It
    USGS West Yellowstone, Montana Sep 13 12:55 3.4 11 MAP I Felt It INFO
    USGS West Yellowstone, Montana Sep 11 05:42 2.7 10 MAP I Felt It
    USGS West Yellowstone, Montana Aug 28 17:53 3.0 7 MAP I Felt It INFO
    USGS West Yellowstone, Montana Aug 03 03:27 2.6 10 MAP I Felt It
    USGS Yellowstone National Park, Montana Jul 02 12:39 2.9 10 MAP I Felt It
    USGS Yellowstone National Park, Montana Jun 30 22:01 2.5 11 MAP I Felt It
    USGS Western Montana Jun 06 02:09 3.3 10 MAP I Felt It INFO
    USGS Western Montana Jun 06 02:09 2.8 8 MAP I Felt It
  • Rock Creek, MT - Heard two pops like an explosion somewhere. Bed shook, nick-nacks rattled.
  • USGS Western Montana May 23 17:30 2.6 3 MAP I Felt It

    Data sources courtesy : USGSEMSCGFZGEONET


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    MMI II (Very weak shaking) ?
    People :
    Felt by persons at rest, on upper floors or favorably placed.
    MMI III (Weak shaking) ?
    People :
    Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
    MMI IV (Light shaking) ?
    People :
    Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
    Fittings :
    Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
    Structures :
    Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
    MMI V (Moderate shaking) ?
    People :
    Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
    Fittings :
    Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
    Structures :
    Some large display windows cracked. A few earthenware toilet fixtures cracked.
    MMI VI (Strong shaking) ?
    People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
    Fittings :
    Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
    Structures :
    Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
    Environment :
    Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
    MMI VII (Very strong shaking) ?
    People
    General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
    Fittings :
    Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
    Structures :
    Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
    Environment :
    Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).
    MMI VIII (Severe shaking) ?
    People Alarm may approach panic. Steering of motorcars greatly affected. Structures : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Environment : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.
    MMI IX (Violent shaking) ?
    Structures Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Environment : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.
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