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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.46 mag was detected near Ridgemark in CA


Earthquake location 36.7779999S, -121.4134979WA minor earthquake magnitude 3.46 (ml/mb) strikes 6 kilometers (4 miles) from Ridgemark in CA on Friday. Global date and time of event UTC/GMT: 28/07/18 / 2018-07-28 07:57:11 / July 28, 2018 @ 7:57 am. Exact location of earthquake, -121.4134979° West, 36.7779999° North, depth 9.43 km. The temblor was reported at 23:57:11 / 11:57 pm (local time epicenter). The earthquake occurred at a depth of 9.43 km (6 miles) below the earth’s surface. Event ids that are associated to the earthquake: nc73058601. Id of event: nc73058601.

Epicenter of the earthquake was 76 km (47 miles) from San Jose (c. 945 900 pop), 24 km (15 miles) from Salinas (c. 150 400 pop), 80 km (50 miles) from Santa Clara (c. 116 500 pop), 59 km (37 miles) from Santa Cruz (c. 59 900 pop), 82 km (51 miles) from Cupertino (c. 58 300 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Cupertino, Patterson, Santa Clara (min 5000 pop).

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days sixty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 6 km SW of Ridgemark, CA.

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More information

Parameter Value Description
Magnitude 3.46 mb The magnitude for the event.
Longitude -121.4134979° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.7779999° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.43 km Depth of the event in kilometers.
Place 6km SW of Ridgemark, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-28 07:57:11 Time when the event occurred. UTC/GMT
Updated 2018-07-28 08:10:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 37 The total number of felt reports
CDI 4.1 The maximum reported intensity for the event.
MMI 3.51 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 199 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, A comma-separated list of network contributors.
Number of Stations Used 55 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.03046 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 37 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 nc73058601 Id of event.
Event Code 73058601 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73058601, A comma-separated list of event ids that are associated to an event.

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