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Moderate earthquake: M5.53 quake has struck near Petrolia in CA

Earthquake location 40.2813339S, -124.2983322WA moderate earthquake magnitude 5.53 (ml/mb) has occurred on Saturday, 5 kilometers (3 miles) from Petrolia in CA. The 5.53-magnitude earthquake was detected at 19:53:02 / 7:53 pm (local time epicenter). Exact location of earthquake, -124.2983322° West, 40.2813339° North, depth 9.45 km. The epicenter of the earthquake was roughly 9.45 km (6 miles) below the earth’s surface. A tsunami warning has been issued near Petrolia in CA (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 23/06/19 / 2019-06-23 03:53:02 / June 23, 2019 @ 3:53 am. Id of earthquake: nc73201181. Event ids that are associated: nc73201181, at00ptj9ge.

Epicenter of the earthquake was 59 km (37 miles) from Eureka (c. 27 200 pop), 68 km (42 miles) from Arcata (c. 17 200 pop), 65 km (41 miles) from Bayside (c. 17 100 pop), 76 km (47 miles) from McKinleyville (c. 15 200 pop), 37 km (23 miles) from Fortuna (c. 11 900 pop), 102 km (63 miles) from Fort Bragg (c. 7 300 pop). Nearest cities/city/villages to epicentrum/hypocenter was Fort Bragg, McKinleyville, Arcata (min 5000 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days fifty-five earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 1320 moderate quakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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. 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: 5 km SSW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 5.53 mb The magnitude for the event.
Longitude -124.2983322° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.2813339° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.45 km Depth of the event in kilometers.
Place 5km SSW of Petrolia, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-06-23 03:53:02 Time when the event occurred. UTC/GMT
Updated 2019-06-23 03:59:19 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 4 The total number of felt reports
CDI 4.6 The maximum reported intensity for the event.
MMI 7.31 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 automatic 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 472 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network nc The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,nc,at, A comma-separated list of network contributors.
Number of Stations Used 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147 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 nc73201181 Id of event.
Event Code 73201181 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73201181,at00ptj9ge, A comma-separated list of event ids that are associated to an event.

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