Current time zone offset : UTC/GMT +3 hours:

20 December 2018

ALERT: Mw 7.4 KOMANDORSKIYE OSTROVA REGION 77 km W Nikolskoye 20/12/2018 17:01 (UTC)

Centre Sismologique Euro-Mediterraneen
European-Mediterranean Seismological Centre

Rapid Determination of Source Parameters
operated at LDG (Paris) and IGN (Madrid)

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WARNING : These parameters are preliminary and subject to revision.
Location and magnitude estimations may be revised if necessary in
an INFORMATION message.
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EARTHQUAKE on 20/12/2018 at 17:01 (UTC)
KOMANDORSKIYE OSTROVA REGION 77 km W Nikolskoye

MAGNITUDE: Mw 7.4

Data provided by: AT BUC DJA GFZ GSRC INGV KAN LVV MAD NEIC N
EWS PT PTWC RSNC SC3

Latitude = 55.07 N
Longitude = 164.77 E
Origin Time = 17:01:54.3 (UTC)
Depth = 10 Km
RMS = 1.34 sec
Gap = 24 degrees
95% confidence ellipse: - Semi major = 4.3 Km
- Semi minor = 3.4 Km
- Azimuth of major axis = 158 degrees

Number of data used = 464

Preliminary location computed on Thu Dec 20 17:24:12 2018 (UTC)
Done by Gilles Mazet-Roux

Comments :

Message number: 2728

All magnitudes estimations :
Mi7.3 (AT) Mb7.2 (BUC) M 7.7 (DJA) M 7.2 (GFZ) M
b7.2 (GSRC) Mw7.0 (INGV) Mw6.8 (KAN) Mw7.4 (NEIC) M
b5.0 (NEWS) Mi7.3 (PT) Mw7.3 (PTWC) M 7.3 (RSNC) M
7.2 (SC3)

P.S.: For additional information, please contact EMSC at:
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- Fax : 33 1 69 26 70 00

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