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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Carletonville in South Africa

Earthquake location -26.4546S, 27.3913WA light earthquake with magnitude 4.2 (ml/mb) was detected on Wednesday, 10 kilometers (6 miles) from Carletonville in South Africa. The temblor was reported at 03:21:44 / 3:21 am (local time epicenter). Exact time and date of event in UTC/GMT: 22/04/20 / 2020-04-22 01:21:44 / April 22, 2020 @ 1:21 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 27.3913° East, latitude -26.4546° South, depth = 10 km. Event ids that are associated to the earthquake: us700091fd. Id of event: us700091fd. The earthquake was roughly at a depth of 10 km (6 miles).

Nearby country/countries, South Africa (c. 49 000 000 pop) (That might be effected). Event epicenter was 71 km (44 miles) from Johannesburg (c. 2 026 500 pop), 51 km (32 miles) from Soweto (c. 1 695 000 pop), 58 km (36 miles) from Vereeniging (c. 474 700 pop), 91 km (56 miles) from Boksburg (c. 445 200 pop), 56 km (35 miles) from Krugersdorp (c. 378 800 pop), 85 km (53 miles) from Diepsloot (c. 350 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Orkney, Boksburg, Midrand (min 5000 pop).

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 10 km S of Carletonville, South Africa. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 27.3913° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -26.4546° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 10km S of Carletonville, South Africa Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-04-22 01:21:44 Time when the event occurred. UTC/GMT
Updated 2020-05-03 05:16:06 Time when the event was most recently updated. UTC/GMT
Timezone offset 120 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 271 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 2.162 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.63 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 70 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 us700091fd Id of event.
Event Code 700091fd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us700091fd, A comma-separated list of event ids that are associated to an event.

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