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Light earthquake, 4.42 mag strikes near Dover in Delaware



Earthquake location 39.2044983S, -75.4211655WA light earthquake magnitude 4.42 (ml/mb) has struck on Thursday, 10 kilometers (6 miles) from Dover in Delaware. Exact location of earthquake, -75.4211655° West, 39.2044983° North, depth 8.12 km. The temblor was picked up at 16:47:31 / 4:47 pm (local time epicenter). The epicenter was at a depth of 8.12 km (5 miles). Global time and date of event 30/11/17 / 2017-11-30 21:47:31 / November 30, 2017 @ 9:47 pm UTC/GMT. A tsunami warning has been issued near Dover in Delaware (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: at00p09376, ld60146101. Unique identifier: ld60146101.

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 86 km (53 miles) from Philadelphia (c. 1 526 000 pop), 84 km (52 miles) from Camden (c. 77 300 pop), 61 km (38 miles) from Wilmington (c. 70 900 pop), 88 km (55 miles) from Cherry Hill (c. 70 500 pop), 95 km (59 miles) from Dundalk (c. 63 600 pop), 46 km (29 miles) from Vineland (c. 60 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Overlea, Annapolis, Arnold (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days one earthquakes of magnitude 3.0 or greater that have been detected 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.

Did you feel anything?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 10 km ENE of Dover, Delaware.

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More information

Parameter Value Description
Magnitude 4.42 mb The magnitude for the event.
Longitude -75.4211655° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.2044983° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.12 km Depth of the event in kilometers.
Place 10km ENE of Dover, Delaware Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-11-30 21:47:31 Time when the event occurred. UTC/GMT
Updated 2017-11-30 22:02:15 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 97 The total number of felt reports
CDI 4.6 The maximum reported intensity for the event.
MMI 6.66 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 345 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ld The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,ld, A comma-separated list of network contributors.
Number of Stations Used 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6283 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ld60146101 Id of event.
Event Code 60146101 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00p09376,ld60146101, A comma-separated list of event ids that are associated to an event.

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