Mariana Islands earthquake list (including Guam)

Last update: April 26, 2012 at 3:20 pm by By

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The list below shows the last Mariana Islands earthquakes (including Guam)

In depth articles on Mariana Islands earthquakes written by Earthquake-Report.com
- soon to come

Label info : M = magnitude, D = depth (km), Time = UTC – Click here for conversion in your local time.
SRC Location UTC Date/time M D INFO
GEOFON Mariana Islands Mar 21 21:08 4.5 136 MAP I Felt It INFO
USGS Rota, Northern Mariana Islands Mar 13 08:49 5.5 104 MAP I Felt It
  • Hemet - No damage noted. Just a rumbling rolling shaking sensation.
  • EMSC Rota Region, N. Mariana Islands Mar 13 08:49 5.5 100 MAP I Felt It
    GEOFON Mariana Islands Mar 13 08:48 5.5 124 MAP I Felt It INFO
  • Asan - No damage noted
  • EMSC Mariana Islands Region Mar 12 14:05 4.5 316 MAP I Felt It INFO
    GEOFON South Of Mariana Islands Mar 07 02:44 5.0 10 MAP I Felt It
    GEOFON Mariana Islands Region Mar 01 06:08 5.1 279 MAP I Felt It
    EMSC Mariana Islands Region Mar 01 06:08 5.1 291 MAP I Felt It INFO
    EMSC Mariana Islands Region Feb 23 10:25 4.5 300 MAP I Felt It
    GEOFON Mariana Islands Region Feb 23 10:25 4.7 303 MAP I Felt It INFO
    EMSC Mariana Islands Region Feb 19 10:42 5.1 10 MAP I Felt It INFO
    GEOFON South Of Mariana Islands Feb 19 10:42 5.0 10 MAP I Felt It
    USGS Rota, Northern Mariana Islands Feb 18 22:22 5.1 14 MAP I Felt It
    GEOFON Mariana Islands Feb 18 22:22 5.0 10 MAP I Felt It INFO
    EMSC Rota Region, N. Mariana Islands Feb 17 17:45 4.7 400 MAP I Felt It
    GEOFON Mariana Islands Feb 17 17:45 4.5 439 MAP I Felt It INFO
    USGS Rota, Northern Mariana Islands Feb 17 17:45 4.7 388 MAP I Felt It
    USGS Agrihan, Northern Mariana Islands Feb 16 21:44 5.0 349 MAP I Felt It
    EMSC Pagan Reg., N. Mariana Islands Feb 16 21:43 5.1 364 MAP I Felt It
    GEOFON Mariana Islands Feb 16 21:43 5.0 358 MAP I Felt It INFO
    USGS Agrihan, Northern Mariana Islands Feb 02 10:30 4.8 178 MAP I Felt It INFO
    GEOFON Mariana Islands Feb 02 10:30 4.7 188 MAP I Felt It INFO
    USGS Agrihan, Northern Mariana Islands Jan 29 23:35 4.8 180 MAP I Felt It
    GEOFON Mariana Islands Jan 29 23:35 5.1 160 MAP I Felt It
    GEOFON South Of Mariana Islands Jan 29 13:47 4.9 10 MAP I Felt It INFO
    GEOFON South Of Mariana Islands Jan 24 09:38 5.6 10 MAP I Felt It
    EMSC Mariana Islands Region Jan 24 09:38 5.6 10 MAP I Felt It INFO
    GEOFON Mariana Islands Region Jan 22 04:32 7.3 10 MAP I Felt It INFO
    GEOFON Mariana Islands Jan 19 17:29 4.7 223 MAP I Felt It INFO
    GEOFON Mariana Islands Region Jan 17 07:46 4.9 115 MAP I Felt It INFO
    EMSC Mariana Islands Region Jan 16 03:16 4.7 318 MAP I Felt It
    GEOFON Mariana Islands Region Jan 16 03:16 4.8 314 MAP I Felt It INFO
    EMSC Mariana Islands Region Jan 13 06:10 4.8 10 MAP I Felt It
    GEOFON South Of Mariana Islands Jan 13 06:10 4.8 10 MAP I Felt It INFO
    GEOFON South Of Mariana Islands Jan 11 21:41 5.0 10 MAP I Felt It
    EMSC Mariana Islands Region Jan 11 21:41 5.0 40 MAP I Felt It INFO
    EMSC Mariana Islands Region Jan 11 16:23 4.8 40 MAP I Felt It
    EMSC Mariana Islands Region Jan 11 14:38 5.2 10 MAP I Felt It
    GEOFON South Of Mariana Islands Jan 11 14:38 5.3 10 MAP I Felt It
    EMSC Mariana Islands Region Jan 11 14:21 4.8 10 MAP I Felt It
    GEOFON South Of Mariana Islands Jan 11 14:20 4.5 10 MAP I Felt It INFO
    USGS Rota, Northern Mariana Islands Jan 10 10:01 5.2 10 MAP I Felt It INFO
    GEOFON Mariana Islands Jan 10 10:01 5.0 10 MAP I Felt It
    EMSC Rota Region, N. Mariana Islands Jan 10 10:01 5.2 10 MAP I Felt It
    EMSC Mariana Islands Region Jan 08 11:41 5.0 30 MAP I Felt It
    GEOFON Mariana Islands Region Jan 08 11:41 4.9 42 MAP I Felt It INFO
    GEOFON Mariana Islands Dec 30 21:08 5.1 10 MAP I Felt It INFO
    EMSC Mariana Islands Region Dec 30 21:08 5.0 10 MAP I Felt It
    GEOFON Mariana Islands Dec 24 12:10 5.0 66 MAP I Felt It
    GEOFON Mariana Islands Dec 24 11:30 5.1 45 MAP I Felt It
    GEOFON Mariana Islands Dec 24 10:10 4.8 10 MAP I Felt It INFO
    EMSC Pagan Reg., N. Mariana Islands Dec 23 01:01 4.9 248 MAP I Felt It
    USGS Agrihan, Northern Mariana Islands Dec 23 01:01 4.9 259 MAP I Felt It INFO
    GEOFON Mariana Islands Dec 23 01:00 5.0 239 MAP I Felt It
    EMSC Mariana Islands Region Dec 21 16:44 5.9 20 MAP I Felt It
    GEOFON Mariana Islands Region Dec 21 16:43 5.8 10 MAP I Felt It INFO
    USGS Anatahan, Northern Mariana Islands Dec 17 21:17 5.1 140 MAP I Felt It
    EMSC Anatahan Reg, N. Mariana Islands Dec 17 21:17 5.1 200 MAP I Felt It INFO
    GEOFON Mariana Islands Dec 17 21:17 5.3 10 MAP I Felt It
    GEOFON Mariana Islands Region Dec 14 21:14 5.5 10 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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