Tonga earthquake list

Last update: April 28, 2012 at 2:48 pm by By

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The list below shows the last earthquakes in Tonga

In depth articles on Tonga earthquakes written by Earthquake-Report.com
- soon to come if any

Label info : M = magnitude, D = depth (km), Time = UTC – Tonga time = UTC +12
SRC Location UTC Date/time M D INFO
USGS Pangai, Tonga May 24 14:39 5.7 35 MAP I Felt It
GEOFON Tonga Islands May 24 14:39 5.9 10 MAP I Felt It
EMSC Tonga May 24 14:39 5.7 2 MAP I Felt It INFO
EMSC Tonga May 21 09:33 5.0 10 MAP I Felt It INFO
GEOFON Tonga Islands May 21 09:33 5.0 10 MAP I Felt It INFO
EMSC Tonga May 20 00:31 6.0 173 MAP I Felt It
USGS Pangai, Tonga May 20 00:30 6.0 180 MAP I Felt It
GEOFON Tonga Islands May 20 00:30 6.0 185 MAP I Felt It INFO
USGS Vaini, Tonga May 15 10:21 5.0 161 MAP I Felt It
EMSC Tonga May 15 03:42 4.9 86 MAP I Felt It
GEOFON Tonga Islands May 15 03:42 5.0 117 MAP I Felt It INFO
  • Neiafu - Strong shake
  • Neiafu - House shook for about ten seconds, we are on a steep hill so definitely felt quiet strong.
  • USGS Neiafu, Tonga May 15 03:42 4.8 71 MAP I Felt It
    USGS Hihifo, Tonga May 12 10:03 5.0 10 MAP I Felt It
    EMSC Tonga May 12 10:03 5.0 10 MAP I Felt It
    GEOFON Tonga Islands May 12 10:03 5.0 10 MAP I Felt It INFO
    USGS Hihifo, Tonga May 09 05:45 4.5 34 MAP I Felt It INFO
    EMSC Tonga May 09 05:45 4.5 34 MAP I Felt It INFO
    EMSC Tonga May 09 02:09 4.4 67 MAP I Felt It INFO
    USGS Hihifo, Tonga May 09 02:09 4.4 66 MAP I Felt It INFO
    GEOFON Tonga Islands Region May 07 19:54 5.2 10 MAP I Felt It
    EMSC Tonga Region May 07 19:54 5.0 10 MAP I Felt It INFO
    USGS Neiafu, Tonga May 07 19:54 5.0 10 MAP I Felt It
    USGS Hihifo, Tonga May 06 09:33 4.5 35 MAP I Felt It INFO
    EMSC Tonga May 06 09:33 4.5 35 MAP I Felt It INFO
    EMSC Tonga May 04 04:26 4.5 210 MAP I Felt It INFO
    USGS Hihifo, Tonga May 04 04:26 4.5 208 MAP I Felt It INFO
    USGS Pangai, Tonga Apr 26 14:05 4.6 298 MAP I Felt It INFO
    GEOFON Tonga Islands Apr 23 22:21 4.9 224 MAP I Felt It INFO
    USGS Neiafu, Tonga Apr 23 22:21 4.7 194 MAP I Felt It
    EMSC Tonga Apr 23 22:21 4.9 186 MAP I Felt It
    EMSC Tonga Apr 14 08:14 5.6 2 MAP I Felt It
    USGS Hihifo, Tonga Apr 14 08:13 5.4 10 MAP I Felt It
    GEOFON Tonga Islands Apr 14 08:13 5.7 10 MAP I Felt It INFO
    EMSC Tonga Region Apr 12 17:35 4.9 33 MAP I Felt It INFO
    USGS Neiafu, Tonga Apr 12 17:35 4.9 32 MAP I Felt It INFO
    EMSC Tonga Apr 12 09:01 4.6 29 MAP I Felt It INFO
    USGS Tonga Apr 12 09:01 4.6 29 MAP I Felt It INFO
    EMSC Tonga Apr 12 00:45 5.2 20 MAP I Felt It
    GEOFON Tonga Islands Apr 12 00:45 5.3 48 MAP I Felt It INFO
    USGS Neiafu, Tonga Apr 12 00:45 5.1 21 MAP I Felt It
    USGS Hihifo, Tonga Apr 11 10:07 4.6 10 MAP I Felt It INFO
    USGS Hihifo, Tonga Apr 07 00:46 5.8 10 MAP I Felt It
    GEOFON Tonga Islands Apr 07 00:46 6.4 10 MAP I Felt It INFO
    EMSC Tonga Apr 07 00:46 6.3 10 MAP I Felt It
    EMSC Tonga Apr 04 05:27 4.9 5 MAP I Felt It
    USGS Neiafu, Tonga Apr 04 05:27 4.9 5 MAP I Felt It INFO
    EMSC Tonga Region Apr 03 12:32 5.3 10 MAP I Felt It
    GEOFON Tonga Islands Region Apr 03 12:32 5.3 90 MAP I Felt It INFO
    USGS Vaini, Tonga Apr 03 12:32 5.3 10 MAP I Felt It
    USGS Hihifo, Tonga Apr 01 11:06 5.2 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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