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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Hafnarfjörður in Iceland


Earthquake location 63.9956S, -22.0617WA light earthquake magnitude 4.6 (ml/mb) has struck on Sunday, 10 kilometers (6 miles) from Hafnarfjörður in Iceland. The 4.6-magnitude earthquake has occurred at 19:01:37 / 7:01 pm (local time epicenter). Exact time and date of earthquake 28/02/21 / 2021-02-28 19:01:37 / February 28, 2021 @ 7:01 pm UTC/GMT. All ids that are associated to the event: us7000dee1. Unique identifier: us7000dee1. Exact location of event, depth 10 km, -22.0617° West, 63.9956° North. The earthquake occurred at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Country/countries that might be effected, Iceland (c. 309 000 pop). The epicenter was 18 km (11 miles) from Reykjavík (c. 118 900 pop), 15 km (9 miles) from Kópavogur (c. 31 700 pop), 10 km (6 miles) from Hafnarfjörður (c. 26 800 pop), 12 km (8 miles) from Garðabær (c. 11 400 pop), 26 km (16 miles) from Mosfellsbær (c. 8 700 pop), 36 km (23 miles) from Akranes (c. 6 600 pop), 52 km (33 miles) from Selfoss (c. 6 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Borgarnes, Selfoss, Akranes.

In the past 24 hours, there have been two, in the last 10 days fourteen, in the past 30 days fourteen and in the last 365 days twenty-one earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 10 km SW of Hafnarfjörður, Iceland. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -22.0617° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 63.9956° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 10 km SW of Hafnarfjörður, Iceland Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-28 19:01:37 Time when the event occurred. UTC/GMT
Updated 2021-02-28 19:19:33 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 326 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.819 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 126 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000dee1 Id of event.
Event Code 7000dee1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000dee1, A comma-separated list of event ids that are associated to an event.

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