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Light earthquake: M4.2 quake has struck near Náfpaktos in Greece

Earthquake location 38.449S, 21.9969WA light earthquake magnitude 4.2 (ml/mb) has struck on Thursday, 16 kilometers (10 miles) from Náfpaktos in Greece. Exact location of earthquake, longitude 21.9969 East, latitude 38.449 North, depth = 10 km. Exact time and date of event in UTC/GMT: 14/01/21 / 2021-01-14 10:49:21 / January 14, 2021 @ 10:49 am. Event ids that are associated to the earthquake: us6000d88m. Id of event: us6000d88m. The epicenter was at a depth of 10 km (6 miles). The 4.2-magnitude earthquake has occurred at 10:49:21 / 10:49 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearby country/countries that might be effected, Greece (c. 11 000 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Amaliáda, Orchomenós, Kiáto (min 5000 pop). Event epicenter was 32 km (20 miles) from Pátra (c. 163 400 pop), 63 km (39 miles) from Lamía (c. 52 000 pop), 55 km (34 miles) from Agrínio (c. 46 900 pop), 76 km (47 miles) from Livadeiá (c. 21 500 pop), 23 km (15 miles) from Aígio (c. 20 700 pop), 92 km (57 miles) from Amaliáda (c. 19 600 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days seven, in the past 30 days fourteen and in the last 365 days thirty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 16 km ENE of Náfpaktos, Greece.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 21.9969° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.449° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 16 km ENE of Náfpaktos, Greece Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-14 10:49:21 Time when the event occurred. UTC/GMT
Updated 2021-01-14 21:52:09 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 4.8 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 272 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 0.629 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 44 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 us6000d88m Id of event.
Event Code 6000d88m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000d88m, A comma-separated list of event ids that are associated to an event.

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