Moderate mag. 5.1 earthquake - 10.4 mi west of Big Lake, Matanuska-Susitna County, Alaska, USA, on Wednesday, 5 December 2018 at 12:48 (GMT)

Moderate mag. 5.1 earthquake  - 10.4 mi west of Big Lake, Matanuska-Susitna County, Alaska, USA, on Wednesday, 5 December 2018 at 12:48 (GMT)

Moderate magnitude 5.1 earthquake at 10 km depth

5 Dec 12:52 UTC: First to report: EMSC after 3 minutes.
Hypocenter depth recalculated from 33.0 to 31.0 km.
Dec 5 12:59: Magnitude recalculated from 4.6 to 4.7.
Dec 5 13:01: Magnitude recalculated from 4.7 to 5.1.
Hypocenter depth recalculated from 31.0 to 10.0 km.
Date & time: 5 Dec 2018 12:48:39 UTC
Magnitude: 5.1
Depth: 10.0 km
Epicenter latitude / longitude: 61.47°N / 150.25°W (Matanuska-Susitna County, Alaska, United States)
Nearest volcano: Spurr (118 km / 73 mi)
Nearby towns and cities:
16 km (10 mi) ESE of Susitna (pop: 18) --> See nearby quakes!
17 km (10 mi) WSW of Big Lake (pop: 3,350) --> See nearby quakes!
34 km (21 mi) NW of Alaska City (pop: 298,700) --> See nearby quakes!
35 km (22 mi) W of Knik-Fairview (pop: 14,900) --> See nearby quakes!
38 km (24 mi) WSW of Meadow Lakes (pop: 7,570) --> See nearby quakes!
40 km (25 mi) WNW of Eagle River (pop: 24,800) --> See nearby quakes!
40 km (25 mi) WNW of Eagle River (Anchorage County) (pop: 24,800) --> See nearby quakes!
948 km (589 mi) WNW of Juneau (pop: 32,800) --> See nearby quakes!
5425 km (3371 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
5425 km (3371 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Estimated released energy: 2.8 x 1012 joules (783 megawatt hours, equivalent to 674 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 5.110 km5.1 SOUTHERN ALASKAEMSC
M 4.538 km- 13km NW of Anchorage, AlaskaUSGS
M 5.110 kmSouthern AlaskaGFZ

User reports for this quake (115)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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36.7 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
41.5 km SE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage, Alaska (19 km SE of epicenter) [Map] / Moderate shaking (MMI V) : I was woken up by the shaking.
Eagle River / Moderate shaking (MMI V)
Anchorage / Light shaking (MMI IV)
Wasilla, Alaska / Light shaking (MMI IV)
99502 / Light shaking (MMI IV)
34 km SE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage (40.5 km SE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
38.3 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Soldotna (114.6 km SSW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
eagle river (44.1 km ESE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Anchorage (41.7 km ESE of epicenter) [Map] / Moderate shaking (MMI V) : Loud noise and some shaking, woke me from sleep (reported through our app)
Wasilla,ak / Moderate shaking (MMI V)
ANCHORAGE (34.8 km SSE of epicenter) [Map] / Moderate shaking (MMI V) : Woke me, my husband and my son up.... alarmed us all enough to get out of bed. Shool the hiyse real good with a hard jolt and s little shaking after (reported through our app)
35.4 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Anchorage / Moderate shaking (MMI V)
35.1 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
40.9 km SSE of epicenter [Map] / Light shaking (MMI IV) : Woke me out of a dead sleep, felt like someone kicked out bed super hard. (reported through our app)
37.8 km SSE of epicenter [Map] / Moderate shaking (MMI V) : Strong jolt (reported through our app)
33.3 km SE of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)
49.5 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
64.9 km E of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
53.1 km ENE of epicenter [Map] / Moderate shaking (MMI V)
42 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
west Anchorage / Moderate shaking (MMI V) : Woke up and grabbed husband's arm. Two big shakes and then some swaying afterwards. Alarmed, for sure.
45.3 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage Alaska / Moderate shaking (MMI V) : Woke me up and lasted longer than a quick jolt.
40.2 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
43.3 km SSE of epicenter [Map] / Moderate shaking (MMI V) : Amazing (reported through our app)
Palmer / Strong shaking (MMI VI) : Felt like 2 solid hard shakes few seconds apart
Anchorage Alaska / Strong shaking (MMI VI) : Fast and hard. Lasted 3 seconds!
Anchorage / Moderate shaking (MMI V)
Palmer / Moderate shaking (MMI V)
Anchorage / Moderate shaking (MMI V)
Eagle River / Moderate shaking (MMI V)
39.6 km SE of epicenter [Map] / Moderate shaking (MMI V) : My trailer jolted and knocked a few things over. I actualy hese the ground rumble first and then felt the shaking (reported through our app)
Anchorage (36.9 km SE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage / Light shaking (MMI IV) : Nice jolt with some light shaking after for about 30 seconds.
42.2 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
46.9 km ENE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Midtown Estates , Palmer Ak. / Light shaking (MMI IV)
Anchorage (36.3 km SSE of epicenter) [Map] / Moderate shaking (MMI V) : Quick but strong jolt in our apartment (reported through our app)
1790 n nina circle, wasilla ak. 99654 (45.6 km ENE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
39.1 km SE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
99507 / Moderate shaking (MMI V) : Largest one in a few days
Anchorage w 9th st / Moderate shaking (MMI V) : Good jolt shook building shook bed
Wasilla, Alaska / Moderate shaking (MMI V) : It was about 5 minutes ago. Woke me up, shook the whole house, a few things fell over on my shelves. Than it was over. I’m thinking about a 4.2
Eagle River / Moderate shaking (MMI V)
Anchorage (40.3 km SE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Anchorage Alaska (39.2 km SSE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
43.3 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Spenard (36.5 km SSE of epicenter) [Map] / Moderate shaking (MMI V)
38.3 km SE of epicenter [Map] / Very weak shaking (MMI II) : Woke me up out of my deep sleep (reported through our app)
Anchorage, Ak / Light shaking (MMI IV)
Anchorage (43.1 km SSE of epicenter) [Map] / Light shaking (MMI IV) : Sudden jolt, did not last long.
Anchorage / Moderate shaking (MMI V)
43.8 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
39.9 km ESE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage / Strong shaking (MMI VI) : South Anchorage
Wasilla / Light shaking (MMI IV) : I was up checking on my daughter when it shook my room. One large jult and then light rattle. I didn’t get excited because we all are getting used to it now.
Elmendorf / Moderate shaking (MMI V)
37 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
45.4 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
South Anchorage / Light shaking (MMI IV) : Woke me up. Large jolt and a little shaking afterwards.
Anchorage Arctic and Tudor / Light shaking (MMI IV) : It just shook the house a bit
Anchorage alaska (45.3 km SE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
37.4 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
42.5 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
39.3 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage, Alaska (41.7 km SE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
38.1 km SSE of epicenter [Map] / Moderate shaking (MMI V) : We are on the 6th floor and we felt that shaking.oh my gosh. (reported through our app)
Lake Hood area in Anchorage Alaska / Light shaking (MMI IV)
34.7 km SE of epicenter [Map] / Moderate shaking (MMI V) : A good jolt & house creaked then subsiding shaking. (reported through our app)
97.1 km SSW of epicenter [Map] / Light shaking (MMI IV) : Shook the cabin (reported through our app)
42.2 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
38.5 km SSE of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)
41 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Wasilla (48.8 km ENE of epicenter) [Map] / Light shaking (MMI IV) : Good jolt (reported through our app)
39.4 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
38.1 km SE of epicenter [Map] / Strong shaking (MMI VI) : Woke me up! (reported through our app)
38.3 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
51 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage / Very weak shaking (MMI II)
67.6 km E of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Anchorage / Moderate shaking (MMI V) : We could hear it possibly 2 secs before it hit
42.2 km SSE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
32.8 km SE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Girdwood (82.9 km SE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
97.1 km SSW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Torrance (United States of America, 3800 km SE of epicenter) : Real quick, small shaking. (reported through EMSC)
Anchorage (United States of America, 15 km SE of epicenter) : Woke me from deep sleep. A couple of large jolts were felt. (reported through EMSC)
Palmer (United States of America, 58 km NE of epicenter) : Woke me up. Bed and house was moving. (reported through EMSC)
Jber (United States of America, 18 km SE of epicenter) : Definitely woke me up! (Palmer,AK) (reported through EMSC)
Wasilla (United States of America, 44 km NE of epicenter) : I'm tired of them!! (reported through EMSC)
Wasilla (United States of America, 44 km NE of epicenter) : Tired of the earth shaking (reported through EMSC)
Wasilla (United States of America, 44 km NE of epicenter) : Good shake... scared the cats (reported through EMSC)
Wasilla (United States of America, 41 km NE of epicenter) : Shook my bed hard enough to wake me up. (reported through EMSC)
Wasilla (United States of America, 44 km NE of epicenter) : Tired of shaking, twisting, rocking and rolling. When is it going to end?! (reported through EMSC)
Anchorage (United States of America, 15 km SE of epicenter) : It felt like a big short jolt (reported through EMSC)
Seward (United States of America, 139 km S of epicenter) : Mild shaking, notied TV swaying on its stand, pretty sure there's still some shaking going on. (reported through EMSC)
Palmer (United States of America, 59 km NE of epicenter) : Mild shaking doors moving a little. Dogs scared. (reported through EMSC)
Palmer (United States of America, 50 km NE of epicenter) : Palmer/Butte, awoke my sleep, but just for a second! But we shook for sure! (reported through EMSC)
Wasilla (United States of America, 47 km NE of epicenter) : Woke me up in Wasilla (reported through EMSC)
Eagle River (United States of America, 43 km E of epicenter) : Woke us up. One sharp shock, followed by shaking for several seconds. (reported through EMSC)
Chugiak (United States of America, 33 km E of epicenter) : Woke me up. (reported through EMSC)
Anchorage (United States of America, 25 km SE of epicenter) : Enough to wake me. (reported through EMSC)
Anchorage (United States of America, 24 km SE of epicenter) : Big jolt! (reported through EMSC)
Anchorage (United States of America, 24 km SE of epicenter) : Woke me up. (reported through EMSC)
Anchorage (United States of America, 23 km SE of epicenter) : Woke me. (reported through EMSC)
Anchorage (United States of America, 20 km SE of epicenter) : Aftershocks continue.., (reported through EMSC)
Anchorage (United States of America, 19 km SE of epicenter) : Heard walls creaked (reported through EMSC)
Anchorage (United States of America, 18 km SE of epicenter) : Trying to sleep yet another bed kick (reported through EMSC)
Anchorage (United States of America, 17 km SE of epicenter) : Another big aftershock in Anchorage AK (reported through EMSC)
Anchorage (United States of America, 15 km SE of epicenter) : Woke me up (reported through EMSC)
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Aftershocks of the 5.1 quake 10.4 mi west of Big Lake, Matanuska-Susitna County, Alaska, USA, 5 December 2018 12:48 GMT

More info
Recorded aftershocks, latest first (981 quakes):
  • 03 Feb 2019 09:12 UTC
    | M 2.6 |
    20 km (12.4 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 03 Feb 2019 05:19 UTC
    | M 2.1 |
    30.6 km (19 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 03 Feb 2019 02:08 UTC
    | M 2.5 |
    18.9 km (11.7 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 02 Feb 2019 23:40 UTC
    | M 3.0 |
    19 km (11.8 mi) depth
    |
    18 km (11 mi) distance
    | EMSC | Details
  • 02 Feb 2019 22:48 UTC
    | M 2.2 |
    31 km (19.3 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 02 Feb 2019 22:14 UTC
    | M 2.9 |
    20.2 km (12.6 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 02 Feb 2019 21:08 UTC
    | M 2.0 |
    34.7 km (21.6 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 02 Feb 2019 19:24 UTC
    | M 2.3 |
    19.5 km (12.1 mi) depth
    |
    14 km (9 mi) distance
    | USGS | Details
  • 01 Feb 2019 23:40 UTC
    | M 2.5 |
    20 km (12.4 mi) depth
    |
    12 km (8 mi) distance
    | USGS | Details
  • 31 Jan 2019 21:25 UTC
    | M 2.1 |
    43.9 km (27.3 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details
  • 31 Jan 2019 12:18 UTC
    | M 3.0 |
    36 km (22.4 mi) depth
    |
    16 km (10 mi) distance
    | EMSC | Details
  • 31 Jan 2019 10:45 UTC
    | M 2.2 |
    20.9 km (13 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 31 Jan 2019 04:44 UTC
    | M 2.9 |
    20.5 km (12.7 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 29 Jan 2019 17:57 UTC
    | M 2.8 |
    19.5 km (12.1 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 29 Jan 2019 11:59 UTC
    | M 3.5 |
    20 km (12.4 mi) depth
    |
    13 km (8 mi) distance
    | EMSC | Details
  • 29 Jan 2019 10:45 UTC
    | M 2.7 |
    38.3 km (23.8 mi) depth
    |
    1 km (1 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Moderate mag. 5.1 earthquake - 10.4 mi west of Big Lake, Matanuska-Susitna County, Alaska, USA, on Wednesday, 5 December 2018 at 12:48 (GMT)
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