Strong mag. 6.5 earthquake - Southern Alaska on Wednesday, 29 July 2015

Strong mag. 6.3 earthquake - Kenai Peninsula Parish, 30 mi east of Port Alsworth, Lake and Peninsula, Alaska, USA, on Wednesday, July 29, 2015 at 02:35 (GMT)

Strong mag. 6.3 earthquake - Kenai Peninsula Parish, 30 mi east of Port Alsworth, Lake and Peninsula, Alaska, USA, on Wednesday, July 29, 2015 at 02:35 (GMT)

Strong magnitude 6.3 earthquake at 114 km depth

29 Jul 02:45 UTC: First to report: GFZ after 9 minutes.
Jul 29 07:10: Magnitude recalculated from 6.2 to 6.3.
Date & time: Jul 29, 2015 02:35:58 UTC
Magnitude: 6.3
Depth: 114.0 km
Epicenter latitude / longitude: 60.05°N / 153.49°W (Kenai Peninsula, Alaska, United States)
Antipode: 60.05°S / 26.51°E
Nearest volcano: Iliamna (18 km / 11 mi)
Nearby towns and cities:
45 km (28 mi) NE of Pedro Bay (pop: 42) --> See nearby quakes!
97 km (60 mi) WNW of Anchor Point (pop: 1,930) --> See nearby quakes!
118 km (73 mi) WNW of Homer (pop: 5,520) --> See nearby quakes!
128 km (80 mi) WSW of Kalifornsky (pop: 7,850) --> See nearby quakes!
135 km (84 mi) WSW of Kenai (pop: 7,660) --> See nearby quakes!
140 km (87 mi) WSW of Nikiski (pop: 4,490) --> See nearby quakes!
143 km (89 mi) WSW of Soldotna (pop: 4,540) --> See nearby quakes!
235 km (146 mi) WSW of Alaska City (pop: 298,700) --> See nearby quakes!
256 km (159 mi) WSW of Eagle River (pop: 24,800) --> See nearby quakes!
256 km (159 mi) WSW of Eagle River (Anchorage) (pop: 24,800) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 atomic bombs!) 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.
Mag.DepthLocationSource
6.3114 kmSouthern AlaskaGFZ
6.3117 km SOUTHERN ALASKAEMSC
6.3117 km- 71km SSW of Redoubt Volcano, AlaskaUSGS
6.3116 kmSSW of Redoubt Volcano, AlaskaGeoAu
shake map
(shakemap: USGS)

User reports for this quake (36)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Soldotna / Moderate shaking (MMI V) : The whole house rippled for several moments. I got a bit queasy.   
Fairbanks (614.8 km NNE of epicenter) [Map] / not felt
Seward, AK / Weak shaking (MMI III) : Light fixtures swayed.... Staircase vibrated...  
Anchorage ak / Moderate shaking (MMI V)
Valdez, AK / Strong shaking (MMI VI)
Kodiak / Light shaking (MMI IV) : I felt two lateral jerks, significant, but brief.  
Anchorage, AK / Light shaking (MMI IV)
Double Musky Inn - Girdwood, AK / Moderate shaking (MMI V) : Having dinner with 3 friends and had a good bouncing for about 15 seconds.  
Homer (119 km ESE of epicenter) [Map] / Moderate shaking (MMI V) : Prolonged moderate shaking in three waves. Vertical blinds swayed by over a foot in mirror.  
Homer (119 km ESE of epicenter) [Map] / Moderate shaking (MMI V) : Prolonged moderate shaking in three waves. Vertical blinds swayed by over a foot in mirror.  
East Anchorage (241.1 km NE of epicenter) [Map] / Weak shaking (MMI III) : Lasted forever, even if it was only a swaying type of motion.   
Wasilla (282.6 km NE of epicenter) [Map] / Moderate shaking (MMI V)
Glacier Blue Av. (161.4 km ENE of epicenter) [Map] / Weak shaking (MMI III)
99502 / Moderate shaking (MMI V)
Eagle river / Strong shaking (MMI VI)
Soldotna, Alaska (136.6 km ENE of epicenter) [Map] / Light shaking (MMI IV)
Chugiak (277.9 km NE of epicenter) [Map] / Moderate shaking (MMI V)
Wasilla, AK / Strong shaking (MMI VI)
Wasilla, AK / Violent shaking (MMI IX)
Spenard Rd. Anchorage (231.1 km NE of epicenter) [Map] / Moderate shaking (MMI V) : /started with a shaking followed by rolling sensation. curtains swayed and table lamps shook. It lasted about 15 seconds. Location Spenard Rd in Anchorage.  
99504 / Strong shaking (MMI VI)
99503 / Strong shaking (MMI VI) : Unable to walk  
99503 / Strong shaking (MMI VI)
Kenai, alaska / Moderate shaking (MMI V) : Tipped my glass birds over.  
Kodiak, AK (258.9 km SSE of epicenter) [Map] / Very weak shaking (MMI II)
JBER / Moderate shaking (MMI V)
Talkeetna (United States, 312 km NE of epicenter) : Rumbled for longer than normal (reported through EMSC)  
Wasilla (United States, 276 km NE of epicenter) : We lost some water out of the above ground swimming pool,due to the balloon edge not filled up enough. (reported through EMSC)  
Anchorage (United States, 234 km NE of epicenter) : Definitely a rumbler. Everything swayed. (reported through EMSC)  
Anchorage (United States, 233 km NE of epicenter) : while I have felt other earthquakes that took a few seconds for me determine if we were having an earthquake, this time I immediately knew, and told son to head outside. It was short, but more than one quick jerk.More like a shaking. (reported through EMSC)  
Sterling (United States, 156 km NE of epicenter) : At the store things were clinking and rattling and the mobile was shaking (reported through EMSC)  
Nikiski (United States, 138 km NE of epicenter) : It was the strongest earthquake I have ever felt in Alaska. (reported through EMSC)  
Anchorage (United States, 229 km NE of epicenter) : It quickly got my attention. Lots of rocking back and forth. (reported through EMSC)  
Anchorage (United States, 229 km NE of epicenter) : Felt it for a slight moment between the P and S waves arriving (reported through EMSC)  
Anchorage (United States, 229 km NE of epicenter) : came n 2 waves, first felt like a large truck driving bye then after a few seconds break the whole building did a large swaying motion (reported through EMSC)  
Anchorage (United States, 229 km NE of epicenter) : It seemed to roll in, then roll out, under foot. After-shocks were gentle rolling. (reported through EMSC)  
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Aftershocks

[More info]

Recorded aftershocks, latest first (363 quakes)

  • 25 Jan 2016 01:30 UTC
    | M 2.8 |
    101.6 km (63.1 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 25 Jan 2016 01:11 UTC
    | M 2.0 |
    109.7 km (68.2 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:52 UTC
    | M 2.3 |
    6.8 km (4.2 mi) depth
    |
    83 km (51 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:46 UTC
    | M 2.5 |
    106.8 km (66.4 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:34 UTC
    | M 2.2 |
    101.3 km (62.9 mi) depth
    |
    41 km (26 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:24 UTC
    | M 2.8 |
    95.5 km (59.3 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:21 UTC
    | M 2.1 |
    28.3 km (17.6 mi) depth
    |
    57 km (35 mi) distance
    | USGS | Details
  • 25 Jan 2016 00:13 UTC
    | M 2.5 |
    57.3 km (35.6 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 24 Jan 2016 23:49 UTC
    | M 2.5 |
    102.3 km (63.6 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 24 Jan 2016 23:32 UTC
    | M 3.0 |
    107.8 km (67 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 24 Jan 2016 23:28 UTC
    | M 2.5 |
    97 km (60.3 mi) depth
    |
    32 km (20 mi) distance
    | EMSC | Details
  • 24 Jan 2016 23:28 UTC
    | M 2.5 |
    96.7 km (60.1 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details
  • 24 Jan 2016 23:19 UTC
    | M 2.2 |
    108.1 km (67.2 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 24 Jan 2016 22:53 UTC
    | M 2.4 |
    100.7 km (62.6 mi) depth
    |
    80 km (50 mi) distance
    | USGS | Details
  • 24 Jan 2016 22:19 UTC
    | M 2.2 |
    112.5 km (69.9 mi) depth
    |
    43 km (26 mi) distance
    | USGS | Details
  • 24 Jan 2016 22:17 UTC
    | M 2.6 |
    97.4 km (60.5 mi) depth
    |
    36 km (23 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

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