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Light mag. 3.4 earthquake - 24 mi southwest of Indian Wells, Riverside County, California, USA, on Friday, Sep 30, 2022 at 4:50 am (GMT -7) -

Light mag. 3.4 earthquake - 24 mi southwest of Indian Wells, Riverside County, California, USA, on Friday, Sep 30, 2022 at 4:50 am (GMT -7) Light mag. 3.4 earthquake - 24 mi southwest of Indian Wells, Riverside County, California, USA, on Friday, Sep 30, 2022 at 4:50 am (GMT -7)

Light magnitude 3.4 earthquake at 9 km depth

30 Sep 11:53 UTC: First to report: EMSC after 4 minutes.
30 Sep 11:53: Now using data updates from USGS
30 Sep 19:30: Hypocenter depth recalculated from 8.9 to 9.3 km (from 5.5 to 5.8 mi).

Earthquake details

Date & timeSep 30, 2022 11:50:11 UTC -
Local time at epicenterFriday, Sep 30, 2022 at 4:50 am (GMT -7)
StatusConfirmed
Magnitude3.4
Depth9.3 km
Epicenter latitude / longitude33.48033°N / 116.51317°W (Riverside, California, United States)
Antipode33.48°S / 63.487°E
Shaking intensityWeak shaking
Felt8 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSalton Buttes (88 km / 55 mi)
Nearby towns and cities15 km (9 mi) SSW of Alpine Village (pop: 146) | Show on map | Quakes nearby
28 km (17 mi) SW of La Quinta (pop: 40,500) | Show on map | Quakes nearby
30 km (18 mi) SSW of Palm Desert (pop: 51,900) | Show on map | Quakes nearby
34 km (21 mi) S of Cathedral City (pop: 53,800) | Show on map | Quakes nearby
38 km (24 mi) SW of Indian Wells (pop: 87,500) | Show on map | Quakes nearby
39 km (24 mi) S of Palm Springs (pop: 47,400) | Show on map | Quakes nearby
100 km (62 mi) SE of San Bernardino (pop: 216,100) | Show on map | Quakes nearby
723 km (449 mi) SE of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 18.5°C (65 F), humidity: 42%, wind: 3 m/s (6 kts) from W
Estimated seismic energy released7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
3.49.3 km17km ESE of Anza, CAUSGS
3.311 kmSOUTHERN CALIFORNIAEMSC
3.49.3 kmSouthern CaliforniaRaspberryShake

Seismograms

Seismic station: Ford Ranch, Anza, CA, USA (FRD/AZ network) | Distance from quake: 8 km / 5 mi | Show on map | Station Info
Seismic station Ford Ranch, Anza, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (8)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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92253 (35.8 km NE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : I heard a boom at the wall of my bedroom followed by vibration of my bed and rattling of the wooden blinds on the window. | One user found this interesting.  
La quinta, California (27.1 km NE of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 10-15 s : Woke up from the shaking, felt it for 10-15 seconds, then it stopped. Rumbling, bed shaking vibrations  
West Covina, Los Angeles, California (147.6 km WNW of epicenter) [Map] / Very weak shaking (MMI II) : Woke up to feeling of steady rocking | One user found this interesting.  
50701 Washington st la quinta ca 92253 (30 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Slight shake lasted for a couple of minutes. | One user found this interesting.  
Palm Desert, Riverside, California (29.5 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 20-30 s : I was sleep felt the shake and sound  
Palm Desert (35.8 km NNE of epicenter) [Map] / Weak shaking (MMI III) : Made my bed move  
79802 Parkway Esplanade S, La Quinta, CA 92253 / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Very weak shaking  
Palm Desert ,Ca / Light shaking (MMI IV) / rattling, vibrating / 2-5 s

Earlier earthquakes in the same area

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