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Moderate mag. 4.6 earthquake - 2.4 mi northwest of Monroe (Washington), Snohomish County, Washington, USA, on 2019-07-12 01:51:38 -08:00

Moderate mag. 4.6 earthquake - 2.4 mi northwest of Monroe (Washington), Snohomish County, Washington, USA, on 2019-07-12 01:51:38 -08:00 Moderate mag. 4.6 earthquake - 2.4 mi northwest of Monroe (Washington), Snohomish County, Washington, USA, on 2019-07-12 01:51:38 -08:00

Moderate magnitude 4.6 earthquake at 29 km depth

12 Jul 09:56 UTC: First to report: USGS after 5 minutes.
Jul 12 10:12: Magnitude recalculated from 4.7 to 4.4.
Hypocenter depth recalculated from 6.0 to 10.0 km.
Jul 12 10:32: Magnitude recalculated from 4.4 to 4.6.
Hypocenter depth recalculated from 10.0 to 22.3 km.
Hypocenter depth recalculated from 22.3 to 24.3 km.
Hypocenter depth recalculated from 24.3 to 28.8 km.

Earthquake details

Date & timeJul 12, 2019 09:51:38 UTC
Local time at epicenter2019-07-12 01:51:38 -08:00
Depth28.8 km
Epicenter latitude / longitude47.87283°N / 122.01633°W (Snohomish, Washington, United States)
Antipode47.873°S / 57.984°E
Shaking intensityLight shaking
Felt1543 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoGlacier Peak (69 km / 43 mi)
Nearby towns and cities2 km (1 mi) WSW of Monroe North (pop: 1,670) | Show on map | Quakes nearby
4 km (2 mi) WNW of Monroe (Washington) (Snohomish County) (pop: 18,100) | Show on map | Quakes nearby
18 km (11 mi) SE of Everett (pop: 108,000) | Show on map | Quakes nearby
23 km (14 mi) SSE of Marysville (pop: 66,800) | Show on map | Quakes nearby
23 km (15 mi) NNE of Redmond (pop: 60,600) | Show on map | Quakes nearby
26 km (16 mi) NNE of Kirkland (pop: 87,300) | Show on map | Quakes nearby
32 km (20 mi) NNE of Bellevue (pop: 139,800) | Show on map | Quakes nearby
38 km (24 mi) NE of Seattle (pop: 684,500) | Show on map | Quakes nearby
76 km (47 mi) NNE of Tacoma (pop: 207,900) | Show on map | Quakes nearby
114 km (71 mi) NE of Olympia (pop: 50,300) | Show on map | Quakes nearby
Estimated seismic energy released5 x 1011 joules (139 megawatt hours, equivalent to 120 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.
4.629 km0km SSW of Three Lakes, Washington (USA)USGS
4.410 kmPuget Sound Region, Washington (USA)EMSC
4.624 kmWashington (USA)GFZ


Seismic station: Electron Hydro (TRON/CC network) | Distance from quake: 98 km / 61 mi | Show on map | Station Info
Seismic station Electron Hydro: 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. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1804)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Issaquah / Light shaking (MMI IV)
Granite falls / Light shaking (MMI IV)
Issaquah / Moderate shaking (MMI V) : I was laying in bed and my 5th wheel started rocking  
Lynnwood, WA / Light shaking (MMI IV) : I woke up from the tail end of it, but many of my friends and neighbors felt it moderately strongly.  
Ruston wa (74.3 km SSW of epicenter) [Map] / Weak shaking (MMI III) : I was Sleeping on the couch along with my dogs and I was woke by them barking as if they heard something about 10-20 seconds later I felt very weak shaking  
Sultan,Wa / Light shaking (MMI IV) : Around 2:50 I woke up to a loud r  
Marysville / Light shaking (MMI IV)
Everett / Severe shaking (MMI VIII)
115th Ave. NE off of the 84th Street NE (Getchell) / Very weak shaking (MMI II) : Felt like the cat jumped up on bed and back down. Dog barked at the same moment. Knew something had happened. Husband didn't feel a thing. Looked at clock to see time. Turned on news an hour later and it confirmed what I thought.  
Bothell, wa / Light shaking (MMI IV)
Freeland, Whidbey Island / Very weak shaking (MMI II) : Suddenly awake from a deep sleep. Then I heard my son in his room. Said he felt mild shaking for a few seconds. No damage. We went back to sleep.  
Queen Anne near SPU / Weak shaking (MMI III) : Woke up from the earthquake. Felt shaking, wondered if it was an earthquake.  
Stanwood Washington / Moderate shaking (MMI V) : Woke me out of a sound sleep and I'm a very heavy sleeper  
Lynnwood WA / Moderate shaking (MMI V) : I was sitting in my room and at 2:51am I heard a loud trembling noise and the room started shaking my desk shook and there was a lot of rattling going on. All the loose stuff in my room were making noise.  
Lynnwood WA / Moderate shaking (MMI V)
Medina, King, Washington (29.4 km SSW of epicenter) [Map] / Weak shaking (MMI III)
Bothell, WA (17 km SW of epicenter) [Map] / Light shaking (MMI IV) : I heard a loud crack and then the rolling. Woke me up. Dog slept through it.  
Everett (2.4 km SSE of epicenter) [Map] / Moderate shaking (MMI V) : It shook the house for about 30 seconds ish. And our t.v. shook also which is on the dresser some plants fell off the shelf. I immediately grabbed my son and held him because I knew about the aftershocks. Which I then felt the after shock a cou  
Somerset, Bellevue / Moderate shaking (MMI V)
Everett, Snohomish, Washington (17.7 km WNW of epicenter) [Map] / Moderate shaking (MMI V)
3626 Hoyt Ave, Everett, WA (18.8 km NW of epicenter) [Map] / Light shaking (MMI IV) : I just happened to be awake. Felt like 3 waves, first part I thought it was the wind. Second it was clear it was a earthquake. 3rd part there was it a clear jolt or hard shaking of the house. My cat was very upset for a few hours. (reported through our app)  
Stanwood / Moderate shaking (MMI V)
MOUNTLAKE TERRACE (23.7 km WSW of epicenter) [Map] / Light shaking (MMI IV) : Sleeping, thought dog was getting rowdy on the bed. Went right back to sleep. Didnt realize I felt it till I heard there was one. (reported through our app)  
Sammamish NE / Moderate shaking (MMI V)
Marysville / Light shaking (MMI IV)
Kingston, WA (41.5 km W of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Port Townsend / Very weak shaking (MMI II)
Everett (19.2 km NW of epicenter) [Map] / Light shaking (MMI IV) : Contents shaking in our room, loud rumble. Lasted for 5-6 seconds.  
LAKE STEVENS, WA / Strong shaking (MMI VI)
Clear view, washington / Light shaking (MMI IV)
Rivershore Road, Snohomish, WA (13.5 km NW of epicenter) [Map] / Moderate shaking (MMI V) : Woke to a boom, then felt a shaking that my neighbor described as being in a salt shaker, and finally, a thrust horizontally. Then it stopped.  
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