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
EMSC Western Montana Nov 15 06:58 3.9 10 MAP I Felt It
  • Kalispell - Shook the house for 3-4 seconds and sounded like a strong wind.
  • Whitefish MT - 4-8 seconds vibration sound light then shaking. Felt like 5.0 depending on center
  • Whitefish - Low rumbling sound with rattling. Shaking on the bottom floor, swaying on the top floor.
  • Kalispell - No damage. Sounded like a sonic boom. Felt a sensation of rolling feeling on the floor...very mild. Lasted ?5 seconds. No rattling or structural affect heard in house.
  • Hungry horse - No damage, felt rumbling for 4 seconds, watched clock on wall move, it felt like a herd of animals running by
  • Hungry Horsr - Rumbling for maybe 10 seconds like an airplane just missing the roof or a truck hitting the building ( it's on a concrete slab), which was vibrating.
  • Whitefish - Felt like an extremely powerful chinook/blizzard wind, causing the house at the roofline to shift in a way that felt alarming as if the house wasn't stable. Lasted about 4-5 seconds.
  • whitefish, mt - My location less than 1/4 mile from epicenter at surface, rough uneven jouncing, amplitude of pulses varied unevenly, enough to shake pans, dishes and cabinet doors-about 5 seconds.(like a washboard dirt road with a hard sprung pickup)(sound resembled a KC-135 starting to take off in -50 temp, a crackling roar from about a half mile).I'll check at first light to see if the rotten tops of drought stricken birches have broke off or not.
  • Whitefish - "Felt like a car hit our house!"
  • Whitefish - My house shook with what sounded and felt like rumbling from a freight train for 4 to 5 seconds.
  • Whitefish - shook the bed and floors and felt like a wave rolling under the house
  • Columbia Falls - a good shake - lots of loud noise. Never experienced an earthquake before. At first I thought the clothes washer was running unbalanced, but then it became much more shaking than the washer could do and it felt like it was coming from the basement. With the loud noises as well I thought something had blown up but couldn't find any evidence of fire or explosion. Then we learned it was an earthquake in Whitefish, MT.
  • Whitefish - Felt the house shake with an accompanying dull roar. I could feel the walls sway back and forth just slightly. 10-15 seconds it was over. First experience for me. I immediately googled it without any results,so I questioned if it wasn't something else, like a very high wind and maybe a large tree branch hit the house.
  • Whitefish - The house completely shook. Windows rattled and decorative plates on the wall rattled. The bed I was in shook. No damage to report.
  • Whitefish, MT - Used to live in Alaska so am familiar with earthquakes. House shook, things rattled, no damage, lasted 8 to 10 seconds.
  • Whitefish - House rumbled underfoot
  • Whitefish - Very close to epicenter large boom as it hit and shook the house like something exploded...then 4 light rolls only took about 4 seconds...no damage
  • Columbia Falls - We live up the North Fork near Blankenship rd and felt the quake as we were in bed. It sounded like a loud engine roaring close to the house and then the bed and walls shook for about 5 seconds. Intense.
  • Columbia Falls - Awoke to noise sounding like an jet low overhead (with kind of a pulsating sound) and slight shaking of the bed for 5-10 seconds.
  • KILA MONT 59920 - WAS SLEEPING FELT MOVEMENT DOG BARKED WOKE ME UP
  • Kalispell - No damage, vibration throughout house for 5 seconds
  • kalispell - it was like a Chinook wind but yet not coming from the right direction and then rolling and swim like movement of the room and then silence
  • kalispell - Woke me up. Felt like the bed was shaking back and forth. Loud noise like something hit the house. Dishes and cupboards made noise and light fixtures swayed. Made my dogs bark.
  • Kalispell - First time I felt afraid during an earthquake. Shook the house and felt like we were riding a wave.
  • Columbia Falls - Sounded like a real loud boom, like a big thud. Not like an explosion, but it sounded like a huge rock, the size of our house, fell out of the sky.
  • Whitefish - Entire house shook, but nothing well off walls or tables.
  • Evergreen - Very loud sonic boom sound and our bed shook for about 5 seconds. We live close to Glacier International Airport and the first thing I thought of was a plane went down.
  • Columbia Falls, Mt - Pulsating roar lasting 4 to 5 seconds starting from north traveling to south. Rattled wall mounted items and cabinet items.
  • Whitefish, MT - I was sound asleep when it felt like something picked our house up and dropped it. There was also a loud noise like an explosion. I thought maybe our motor home had exploded in our driveway. I have not detected any damage. We live 3 miles east of Whitefish.
  • Kalispell - Woke to what sounded like an explosion. Checked all around the house and look at all the neighbors houses expecting to see one on fire. Didn't find out about earthquake til morning.
  • Marion at home - Was awake at midnight and felt the quake. It was recognizable because we there had been a hard jolt on Tuesday the 11th. The shake otherwise would have been thought to be a double axial truck going by on our dirt road. No damage noted. No damage from Tuesdays jolt that I know of.
  • lakeside - Bed shook enough to wake me up. I heard the windows rattle. I guess it lasted maybe 10 second s or less.
  • USGS Whitefish, Montana Nov 15 06:58 3.9 13 MAP I Felt It INFO
  • Whitefish - I was sitting on a couch on our 2nd floor of our 3 story home. I heard a rumbling noise and my big strong sturdy home was shaking. It was pretty strange, I googled it right away and found nothing. Later saw on facebook that others felt it in Kalispell. Glad to hear that others felt it too, wondered also if it was an effect from a sonic boom, but really thought it was an earthquake. My first experience with feeling an earthquake. Saw the effects of a small one when my children were small.
  • Kalispell - My house creaked loudly first on the north side then on the south side which woke me up. At first I thought it was a strong wind, but then I noticed a low deep rumbling sound for about five seconds and felt some shaking.
  • Marion - The house shook for 5 to 10 seconds and there was a slight rattle sound.
  • Columbia Falls MT - Woke me up. Felt the Bed Move and Motel Shift. Herd a Sonic Crack and Rumble outside.
  • Kalispell - Very strong shaking knocked items off counter my trailer home shook violently. Very loud sonic boom. Lasted about 5 or 6 seconds. Trees swayed outside. Scared me!
  • Whitefish - woke us up. I was impressed by the sound. no damage.
  • Superior - One person in our family whose wooden bed is on an uncarpeted floor woke up at 12:04 Mountain time because her bed was shaking/rattling.
  • USGS Lakeside, Montana Nov 11 22:33 3.7 8 MAP I Felt It INFO
    USGS Thompson Falls, Montana Nov 11 22:33 3.7 8 MAP I Felt It INFO
    USGS West Yellowstone, Montana Oct 27 10:35 3.1 9 MAP I Felt It INFO
    USGS Lincoln, Montana Oct 15 06:49 3.3 16 MAP I Felt It
    EMSC Western Montana Oct 15 06:49 3.4 5 MAP I Felt It INFO
    USGS Lincoln, Montana Sep 28 04:42 3.6 17 MAP I Felt It
    EMSC Western Montana Sep 28 04:42 3.7 5 MAP I Felt It INFO
    USGS West Yellowstone, Montana Sep 24 09:41 3.2 6 MAP I Felt It INFO
    USGS Dillon, Montana Jul 28 12:51 3.6 6 MAP I Felt It INFO
  • Dillon Montana - I was sleeping and the whole king size bed shook violently for about three or four seconds. It woke me and I waited to see if NPR would talk about at 7:15. They did not so I checked your website.
  • Dillon,MT - Loud jolt. Sounded and felt like a brief explosion. Shook house for just a few seconds.
  • Dillon, MT - Just enough shaking to let us know it was an earthquake. No damage and right back to sleep.
  • Butte - Don't know about any damage, but as I lay in bed, I certainly felt the house shake a bit and knew immediately what it was.
  • Dillon,Montana - Morning about 7 ish am ...no damage , but it was good size earthquake Very noticeable
  • Anaconda, MT - Laying on couch sometime between 640 and 0700 and my house made a loud creak along with one slight shake of the couch
  • Butte - Felt it shake the bed briefly
  • Dillon - The quake shook the house very noticeably. We were on second floor of woodframe house built in 1925.
  • Dillon - Felt a very weak shaking but knew what it was. Later in the morning while I was in town, I heard several people who were nearer the quake talk about their windows shaking and a few things moving in their homes.
  • USGS Townsend, Montana Jul 23 23:55 3.5 3 MAP I Felt It INFO
  • Townsend - It felt and sounded more like an explosion than a quake.
  • USGS West Yellowstone, Montana Jun 04 21:22 3.4 9 MAP I Felt It INFO
    USGS West Yellowstone, Montana Jun 04 15:20 2.5 6 MAP I Felt It
    USGS West Yellowstone, Montana Jun 04 12:16 3.5 7 MAP I Felt It INFO
    USGS West Yellowstone, Montana Jun 03 09:52 3.1 7 MAP I Felt It
    USGS West Yellowstone, Montana Jun 03 09:39 2.9 9 MAP I Felt It
    USGS West Yellowstone, Montana Jun 03 09:33 3.4 10 MAP I Felt It INFO
    USGS West Yellowstone, Montana May 31 22:24 3.3 1 MAP I Felt It INFO
    USGS Libby, Montana May 14 02:09 3.4 15 MAP I Felt It INFO
  • Crystal Lake, Montana - It was more of a rolling feeling.
  • USGS Thompson Falls, Montana May 03 15:13 2.5 2 MAP I Felt It
    USGS Thompson Falls, Montana Apr 27 09:44 2.6 6 MAP I Felt It
    EMSC Western Montana Apr 23 14:41 3.5 24 MAP I Felt It INFO
    USGS Lincoln, Montana Apr 23 14:41 3.5 23 MAP I Felt It INFO
  • HELENA - Dishes rattled on our table.
  • 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

    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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