Strong mag. 6.3 earthquake - Kyushu, Japan on Thursday, 13 March 2014

Forte terremoto magnitudine 6.3 - Inland Sea, 42 km a sud da Tokuyama, Giappone, giovedì, 13 marzo 2014

Forte terremoto magnitudine 6.3 - Inland Sea, 42 km a sud da Tokuyama, Giappone, giovedì, 13 marzo 2014

Strong magnitude 6.3 earthquake at 83 km depth

13 Mar 17:26 UTC: Primo a segnalare: USGS dopo 19 minuti.
Data & ora: 13 Mar 2014 17:06:51 UTC
Ora locale a epicentro: Thursday, March 13, 2014 17:06:51
Magnitudine: 6.3
Profondità: 82.9 km
Epicentro latitudine / longitudine: 33.6827°N / 131.7366°E (Inland Sea, Giappone)
Vulcano più vicino: Tsurumi (53 km / 33 mi)
Nearby towns and cities:
30 km ENE da BungoTakada (pop: 23,900) --> Vedi sismi vicini
31 km NNE da Kitsuki (pop: 23,400) --> Vedi sismi vicini
36 km SSO da Hikari (pop: 45,900) --> Vedi sismi vicini
37 km SSO da Kudamatsu (pop: 52,800) --> Vedi sismi vicini
44 km SSE da Hōfu (pop: 116,900) --> Vedi sismi vicini
47 km SO da Yanai (pop: 32,200) --> Vedi sismi vicini
50 km NNE da Beppu (pop: 125,100) --> Vedi sismi vicini
52 km E da Nakatsu (pop: 67,400) --> Vedi sismi vicini
53 km ESE da Ube (pop: 173,700) --> Vedi sismi vicini
57 km E da Buzen (pop: 26,900) --> Vedi sismi vicini
63 km N da Usuki (pop: 35,000) --> Vedi sismi vicini
69 km N da Tsukumiura (Tsukumi) (pop: 21,700) --> Vedi sismi vicini
70 km SO da Iwakuni (pop: 104,000) --> Vedi sismi vicini
70 km E da Yukuhashi (pop: 71,300) --> Vedi sismi vicini
74 km SO da Ōtake (pop: 30,200) --> Vedi sismi vicini
78 km ONO da Ōzu (pop: 38,800) --> Vedi sismi vicini
123 km E da Fukuoka (pop: 1,392,300) --> Vedi sismi vicini
761 km OSO da Tokyo (pop: 8,336,600) --> Vedi sismi vicini
156 km NNE da Kyushu Island (pop: 13,232,000) --> Vedi sismi vicini
31 km OSO da Amata-jima Island --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 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.
M 6.383 kmKyushu, JapanUSGS
M 6.382 kmKyushu, JapanGFZ
M 6.383 kmN of Kunisaki-shi, JapanGeoAu
M 6.278 km伊予灘 (Iyo-Nada)JMA

shake map
(shakemap: USGS)

User reports for this quake (11)

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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Nagoya / Light shaking (MMI IV)
Hamada, Shimane, japan / Light shaking (MMI IV)
Osaka, Japan / Weak shaking (MMI III)
Fukuoka-shi (124.4 km W of epicenter) [Map] / Light shaking (MMI IV)
Hiroshima (Japan, 103 km NE of epicenter) : It was quite strong and went on for a good minute. Was seriously considering leaving the building. (reported through EMSC)
Iwakuni (Japan, 70 km NE of epicenter) : The duration was longer then most earthquakes. (reported through EMSC)
Kobe (Japan, 342 km E of epicenter) : It was a repeatable rhythmic swaying starting with a small rocking sensation building in amplitude lasting for about 2 mins. (reported through EMSC)
Kobe (Japan, 342 km E of epicenter) : It was a smooth swaying sensation that started with a small amplitude similar to small waves on a boat, it woke me up as it built in amplitude. At the peak I felt like the bed was moving, the water in the humidifier was sloshing about and the lampshade was swinging. it was one set that lasted for about a min then petered out quite quickly. (reported through EMSC)
Kurume (Japan, 117 km SW of epicenter) : J'ai été réveillé par le système d'alerte Japonnais sur les téléphones portables. Au moment du tremblement de terre mon téléphone déclenchait une alarme et disait "C'est un tremblement de terre !" Nos 2 enfants n'ont pas été réveillés. (reported through EMSC)
Minato Ward (Japan, 503 km E of epicenter) : It came in two waves. First wave lasted about 5 seconds The a brief pause around 10 seconds then the second wave lasted about 5 seconds. (reported through EMSC)
Daegu (South Korea, 371 km NW of epicenter) : Om (reported through EMSC)
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More info
Recorded aftershocks, latest first (4 quakes):
  • 13 Aug 2014 22:51 UTC
    | M 4.5 |
    87.3 km (54.2 mi) depth
    15 km (9 mi) distance
    | USGS | Details
  • 22 Mar 2014 11:05 UTC
    | M 4.6 |
    84.7 km (52.6 mi) depth
    12 km (7 mi) distance
    | USGS | Details
  • 13 Mar 2014 18:46 UTC
    | M 3.8 |
    49 km (30.4 mi) depth
    71 km (44 mi) distance
    | JMA | Details
  • 13 Mar 2014 17:13 UTC
    | M 2.3 |
    79 km (49.1 mi) depth
    18 km (11 mi) distance
    | JMA | Details

Earlier earthquakes in the same area

Strong mag. 6.3 earthquake - Inland Sea, 42 km south of Tokuyama, Shūnan Shi, Yamaguchi, Japan, on Thursday, March 13, 2014 17:06:51
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