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Earthquake close to Swansea, United Kingdom – February 17, 2018

Saturday, February 17, 2018 8:18
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Update 14:53 UTC: Shaking map with possible related damage from the natural disaster specialists at CATnews (Risklayer - CEDIM), Karlsruhe, Germany. Map generated by Andreas Schäfer.

Screen Shot 2018-02-17 at 15.53.14

Update 14:51 UTC: UK Professor Steven Hicks

Update 14:47 UTC: We do think that this earthquake can cause some damage because of the building styles in the UK. Brick houses are vulnerable for cracks in walls, collapsed chimneys etc.

Update 14:40 UTC: Based on the present earthquake parameters (Magnitude, Depth, Population, etc) and our experience with earthquake damage impact, does expect at least some slight damage like cracks in walls, fallen tiles, etc.

Screen Shot 2018-02-17 at 15.42.11

Most important Earthquake Data:

Magnitude : 4.9

Local Time (conversion only below land) : 2018-02-17 14:31:08

GMT/UTC Time : 2018-02-17 14:31:08

Depth (Hypocenter) : 10 km

Depth and Magnitude updates in the list below.

Donation - long - San Francisco

Share your earthquake experience (I Have Felt It) with our readers.
Click on the "I Felt It" button behind the corresponding earthquake. Your earthquake experience is not only important for science, but also for people in the area as well as our global readership.

SRC Location UTC Date/time M D INFO
GEOFON United Kingdom Feb 17 14:31 4.9 10 MAP I Felt It INFO
  • barnstaple - shaking lasted maybe 5 seconds - no apparent damage but things looked as if they would fall off shelves etc
  • Blackwood - Weak shaking
  • Birmingham - Light shaking
  • Port Talbot - 2 small tremors
  • Port Talbot - 2 small tremors
  • Market Drayton - Couple of seconds, house felt like it wobbled.
  • swansea - No damge. Setee moved, floor shook.
  • Portishead - Very quick tremor almost like a single impact.
  • BARRY - Light shaking
  • Moretonhampstead Devon - Heard distant boom. Though was that an explosion. Then felt something coming this way a few seconds later. Got increasingly violent with table rocking etc. then eased off again. Shaking lasted maybe 5 seconds.
  • Llandrindod Wells - The shaking lasted about 3 seconds.
  • Llandovery - Low, steady rumbling with shaking and upward movement of floor for 5-10 seconds
  • Rhandirmwyn - Heard rumbling as if a helicopter was starting to descend from overhead. Movement lasted about 5 seconds.
  • Newport - Light shaking
  • Caerphilly - Weak shaking
  • WREXHAM - Light shaking
  • Birmingham - Chair wobbling 10 secs
  • Bedstone - 30 seconds of shaking at about 2:30
  • Reading - Weak shaking
  • Drefach Velindre - Light shaking
  • CHIPPENHAM - Moderate shaking but just for a few seconds
  • Swindon - Felt like the house was wobbling, things fell over
  • Port Talbot - Playing my ps4 and my bed shook and my dog is hiding on the table
  • BRIDGEND - Lasted around 5 secs sat at kitchen table.. vase of flowers shaking
  • Rhiwbina, Cardiff - ? Maybe 7 seconds
  • ROWLEY REGIS - Lasted around 3-5 seconds
  • Abercynon - Approx 30 seconds. Felt like I was on a train. Sofa moved
  • Carmarthen - Everything in the house started shaking with some things falling
  • Swansea - 5 seconds of shaking. Everything shook.
  • Yeovil - Lasted 5 seconds. Wardrobes and furniture shaking.
  • Bath - Bed shook for a few seconds
  • Bath - Bed shook for a few seconds
  • Newcastle Emlyn - 5 second rumble
  • Rhigos - Moderate shaking
  • Rhigos - Moderate shaking
  • Cynwyd - Very weak shaking
  • Redditch - House shook, doors and windows knocking
  • Rhondda - No property damage. House was shaking.
  • Rhondda - No property damage. House was shaking.
  • Aberdare - Me and family members were in my living room and i was talking about miving home all of a sudden the building shook and you could hear it and my fyrniture lamps was rattling 1st of all i thought something had crashed into side of building as im in top flat 3 storeis up but then realised it was actually an earthquake. Very scary
  • Cardiff - I was in a house and then I head a and then I shat myself.
  • Pontypridd - Light shaking
  • Ystradgynlais - Light shaking
  • swansea - Moderate shaking
  • Cardiff - Very weak shaking
  • Bath - We had one shake for a couple of seconds then another few minutes after
  • Bristol - Shaking lasted for about 5 seconds.
  • Swansea - House shook fairly violently 3 times No damage
  • Colwyn Bay - One brief tremor - sitting in armchair when room, including TV, shook briefly. Heard nothing.
  • West Midlands - Felt like house wobbled
  • Swansea - My stuff started falling from my table and my hose was shaking
  • Chideock, Dorset - Shaking for only a second or so, very weak but disturbed jars above kitchen mantle.
  • Swansea - Shook the house for about 3-4 seconds. I thought a car had driven into the house, or a tree had fallen. No damage. Nothing fell
  • Swansea - Shook the house for about 3-4 seconds. I thought a car had driven into the house, or a tree had fallen. No damage. Nothing fell
  • Pencoed - No damage just a strange feeling
  • Pencoed - No damage just a strange feeling
  • Llangyfelach - Moderate shaking
  • Llangyfelach - Moderate shaking
  • Old Colwyn - I was sat watching Channel 4, felt the entire room I was in shake, saw the light fixture shake, and then it stopped. Only lasted about a second. No damage done.
  • Ringwood - Lasted all of 5 seconds but my entire flat was shaking
  • Jersey marine - Loud rumble for few seconds slight vibration
  • Bridport - A few seconds nothing damaged
  • Peasedown St John - 4 seconds no damage
  • Swansea - Moderate shaking
  • Pontypool - No damage - shaking lasted for 10s or so - dozens of residents confirm on our neighbourhood Facebook group.
  • Swansea - House shook , for a second or two, no discernible damage so far.
  • Monmouthshire - Weak shaking
  • Swansea - The whole street shock
  • Devon - Light shaking
  • Cwmparc - The whole house dropped then went side to side. Lasted seconds. My son fell off his bed. A few things moved in the house. No damage.
  • Ammanford - Strong shaking for 3 to 5 seconds, sounded like a truck had crashed into my house. No apparent damage
  • Neath - Sounded like a train passing, with an impact that shook the house.
  • Swindon - Shaking lasted about 5-6 seconds, kingside bed shook and kitchen table and chairs shook quite violently
  • Swindon - Shaking lasted about 5-6 seconds, kingside bed shook and kitchen table and chairs shook quite violently
  • Newport - No damage and lasted about 2-3 seconds
  • Gloucestershire - Light shaking
  • Neath - Strong shaking
  • Swansea - 2 separate shakes lasting a couple of seconds each.
  • Barry - Only lasted a few seconds, my sofa moved and the windows were shaking.
  • Kingswinford - Just after 2.30pm - a few seconds of ‘bouncing’ felt on floor and sofa where i was sitting
  • Swansea - Light shaking
  • Blackwood - Sofa shock, walls bounced and heard a thud. Really frightening.
  • South wales - House shook loud bang we thought something had crashed into the house!
  • Swansea - Light shaking
  • Cardiff - Shaking lasted approximately 5-10 seconds, some furniture moved, no damage.
  • Bath - Not long maybe 4 seconds. NO noticeable damage. Rocking action
  • Cardiff - It lasted 5 or 10 seconds and I literally felt the ground shake and saw the whiteboard that I was looking at move. Didn’t even know it was an earthquake until later.
  • Aberdare - Weak shaking
  • Bath - 2 seconds, buildings shaking
USGS Clydach, United Kingdom Feb 17 14:31 4.2 11 MAP I Felt It
EMSC Wales-england Region, U.k. Feb 17 14:31 4.7 10 MAP I Felt It
  • Stourbridge - No damage but felt House move sideways. 2 second rumble
  • Portishead - Lasted approx. 5 secs whole house shook ornaments vibrated settee wobbled
  • Higher Kinnerton - Sofa shook for 1 or 2 seconds
  • Neath - Light shaking
  • Swansea - Loud rumble heard, house shook for about 5 seconds, then a jolt and all stopped
  • Three Crosses, Swansea - Heard a loud bang and the house shook. The living room door opened. It felt like an underground explosion but the air moved as like a shock wave. All the neighbours out wondering what the noise was. Lasted 5-8 seconds.




Other earthquakes in the greater epicenter area

Strongest earthquakes (since 1900) within a 150 km radius from this earthquake


I felt the shaking *
Country where you felt the earthquake *
City/Village where you felt the earthquake *
Street or suburb (area) where you felt the earthquake
Latitude (area) where you felt the earthquake
Longitude (area) where you felt the earthquake
Shaking Strength *
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) ?
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.
Tell us your experience and how many seconds the shaking lasted + let us know if your property has been damaged (even slight damage). (max. 500 characters)
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