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Moderate mag. 4.9 earthquake - 66 mi northeast of San Diego, California, on 2020-04-03 17:53:18 -08:00

Moderate mag. 4.9 earthquake - 66 mi northeast of San Diego, California, on 2020-04-03 17:53:18 -08:00 Moderate mag. 4.9 earthquake - 66 mi northeast of San Diego, California, on 2020-04-03 17:53:18 -08:00

Moderate magnitude 4.9 earthquake at 11 km depth

4 Apr 01:55 UTC: First to report: USGS after 2 minutes.
Apr 4 01:59: Magnitude recalculated from 4.6 to 4.9.
Hypocenter depth recalculated from 10.6 to 10.5 km.

Earthquake details

Date & timeApr 4, 2020 01:53:18 UTC
Local time at epicenter2020-04-03 17:53:18 -08:00
StatusConfirmed
Magnitude4.9
Depth10.5 km
Epicenter latitude / longitude33.4895°N / 116.50633°W (Riverside, California, United States)
Antipode33.49°S / 63.494°E
Shaking intensityLight shaking
Felt368 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSalton Buttes (88 km / 55 mi)
Nearby towns and cities13 km (8 mi) SSW of Alpine Village (pop: 146) | Show on map | Quakes nearby
27 km (16 mi) SW of La Quinta (pop: 40,500) | Show on map | Quakes nearby
29 km (18 mi) SSW of Palm Desert (pop: 51,900) | Show on map | Quakes nearby
29 km (18 mi) SSW of Rancho Mirage (Riverside County) (pop: 18,100) | Show on map | Quakes nearby
33 km (20 mi) S of Cathedral City (pop: 53,800) | Show on map | Quakes nearby
37 km (23 mi) SW of Indian Wells (pop: 87,500) | Show on map | Quakes nearby
37 km (23 mi) SW of Coachella (pop: 44,600) | Show on map | Quakes nearby
38 km (24 mi) S of Palm Springs (pop: 47,400) | Show on map | Quakes nearby
106 km (66 mi) NE of San Diego (pop: 1,394,900) | Show on map | Quakes nearby
722 km (449 mi) SE of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Estimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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
4.910.5 km17km ESE of Anza, CA (USA)USGS
4.95 kmSouthern California (USA)EMSC
4.910 kmSouthern California (USA)GFZ

User reports for this quake (840)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Mexicali, Baja California (138.1 km SE of epicenter) [Map] / Very weak shaking (MMI II) : Was week but long... To Many after shocks ... Figures On tablet movr (reported through our app)  
Screenshot... .jpg (public domain)
Escondido, San Diego, California (64.3 km SW of epicenter) [Map] / Light shaking (MMI IV) : Nothing was moving or waving but it was strong more like a explosion/thunder impact | One user found this interesting. (reported through our app)  
Vista, CA (75.5 km WSW of epicenter) [Map] / Light shaking (MMI IV) : Single jolt, fol  
Anaheim, CA (137.5 km WNW of epicenter) [Map] / Very weak shaking (MMI II) : I didnt feel it myself but my mom was watching tv and said she felt the couch moving but no loud noise just slow movement.  
Palm Desert, CA (79.3 km E of epicenter) [Map] / Moderate shaking (MMI V) : This wasn’t truly a shaking  
IMPERIAL BEACH (116.7 km SSW of epicenter) [Map] / Light shaking (MMI IV) : HEARD SOUND FIRST . THEN THE WOOD FRAME OF HOUSE CREAKING THEN THE BED I WAS ON STARTED A LEFT TO RIGHT SLOW SHAKING MAYBE 4 TIMES. I KNEW IMMEDIATLY IT WAS AN EARTHQUAKE  
Mission Viejo, CA (104.5 km W of epicenter) [Map] / Weak shaking (MMI III) : I felt my bed move back and forth with force for a few seconds and yelled to my family members, "earthquake" but they didn't notice while standing downstairs.  
Salton City (54.4 km ESE of epicenter) [Map] / Light shaking (MMI IV) : It felt long but probably only 20 seconds or less ..big boom, first then started slow, increased quick, then slacked of. (reported through our app)  
Cathedral City California (36.2 km N of epicenter) [Map] / Light shaking (MMI IV) : Was on sofa, TV going. This one was LOUD first, a deep rumble, then maybe three sharp jolts. 10 seconds total duration is my guess. (reported through our app)  
Lake Mathews (88.5 km WNW of epicenter) [Map] / Light shaking (MMI IV) : Sitting in garage w/3 others gradually building state. Its was like a Up/dwn rolling left and right atop a shakey base. (reported through our app)  
Escondido (65.9 km SW of epicenter) [Map] / Light shaking (MMI IV) : I was sitting at my desk on the second floor of my home. It started light then grew stronger. The quake only lasted a few moments for us.  
La Jolla, San Diego, California (99.5 km SW of epicenter) [Map] / Weak shaking (MMI III) : It was as if someone was kicking the couch where I was sitting. I didn't notice any sound in advance or during the quake. (reported through our app)  
La Quinta Cove (24.7 km NE of epicenter) [Map] / Light shaking (MMI IV) : It started as a slow rolling rumble(~about 5 sec) punctuated by a sharp abrupt jolt & quick reverberation shake {~3 sec} followed by an almost imperceptible pause(1 sec) then another low rumble that trails off for 10 seconds  
El Cajon (84.9 km SSW of epicenter) [Map] / Moderate shaking (MMI V) : Several seconds of very subtle shaking followed by 2-3 seconds of significant lateral movement. Possible foreshock? (reported through our app)  
La Jolla, San Diego, California (97.4 km SW of epicenter) [Map] / Very weak shaking (MMI II) : "Was that an earthquake?" crossed my mind. But I dimissed it as a slam from some neighbor's garage door. Guess it was an earthquake! Just one jolt felt—no shaking.  
Jurupa valley California 92509 (107.4 km WNW of epicenter) [Map] / Light shaking (MMI IV) : I was sitting on the couch watching legacies on Netflix. Lol. Motion was North to South. Lasted between 2-4 seconds.  
El Cajon, San Diego, California (87.9 km SSW of epicenter) [Map] / Moderate shaking (MMI V) : El Cajón, Californi (reported through our app)  
Escondido, San Diego, California (65.1 km SW of epicenter) [Map] / Light shaking (MMI IV) : Felt initial rumble and then a few seconds later felt stronger rumble. It was felt by all in the home including our dog who barked.  
San Diego near La Mesa (97 km SSW of epicenter) [Map] / Very weak shaking (MMI II) : Felt light shaking from north side of living room that traveled across room. Vibrated couch from left side to right like a wave for about 2 seconds. (reported through our app)  
Palm Desert (23.9 km NNE of epicenter) [Map] / Strong shaking (MMI VI) : Oh my God it was so strong right underneath my feet whole house shook scared the shit out of me and the cats (reported through our app)  
aliso viejo, CA (114.1 km W of epicenter) [Map] / Weak shaking (MMI III) : Mirror closet door shook, it felt like 2 separate earthquakes a few seconds apart. the cat and dog didn’t seem alarmed  
Rancho San Diego, California (93.5 km SSW of epicenter) [Map] / Weak shaking (MMI III) : It felt like someone had a loud ass subwoofer in their car. I leaned on the wall and it was vibrating from 5 to 10 secs (reported through our app)  
Lakeland Village, Riverside, California (80 km WNW of epicenter) [Map] / Weak shaking (MMI III)
near Medford, Jackson, Oregon (1126.5 km NNW of epicenter) [Map] / Very weak shaking (MMI II) : I was just drifting off to sleep, felt a few seconds of shake and a slight rumbly feeling.  
Jurupa Valley (92.6 km WNW of epicenter) [Map] / Light shaking (MMI IV)
San Diego, California (97.7 km SW of epicenter) [Map] / Light shaking (MMI IV) : Felt the shaking for 2-3 seconds  
Homeland (69.6 km WNW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
El Cajon (95.2 km SSW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Casa de Oro-Mount Helix, San Diego, California (89.2 km SSW of epicenter) [Map] / Moderate shaking (MMI V) : More shacking then the 3.6 precurser. House simply made lots of noise. No damege to report. (reported through our app)  
Riverside, Ca. (97.3 km WNW of epicenter) [Map] / Weak shaking (MMI III) : It felt and sounded like a train coming through the house for a few seconds. (reported through our app)  
Wildomar, Riverside, California (70.3 km W of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
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