Jul 18, 2017

REVISION: Mw 7.7 KOMANDORSKIYE OSTROVA REGION 89 km E Preobrazhenskoy 17/07/2017 23:34 (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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==================== INFORMATION MESSAGE =========================
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THIS MESSAGE IS A REVISION OF A PREVIOUS EMSC ALERT
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EARTHQUAKE on 17/07/2017 at 23:34 (UTC)
KOMANDORSKIYE OSTROVA REGION 89 km E Preobrazhenskoy

MAGNITUDE: Mw 7.7

Data provided by: AT AUST GFZ GSRC IMP INGV KAN MAD NEIC NEWS P
T PTWC SEO

Latitude = 54.53 N
Longitude = 168.90 E
Origin Time = 23:34:14.3 (UTC)
Depth = 15 Km (f)
RMS = 1.29 sec
Gap = 34 degrees
95% confidence ellipse: - Semi major = 5.3 Km
- Semi minor = 3.3 Km
- Azimuth of major axis = 170 degrees

Number of data used = 341

Preliminary location computed on Tue Jul 18 00:25:51 2017 (UTC)
Done by Johann Bailleul

Comments :

Message number: 2481

All magnitudes estimations :
Mw7.8 (AT) M 7.6 (AUST) M 7.2 (GFZ) Mb6.7 (GSRC) M
W7.2 (IMP) Mw7.6 (INGV) Mw7.3 (KAN) Mw7.7 (NEIC) M
b4.3 (NEWS) Mi7.4 (PT) Mw7.8 (PTWC) M 7.4 (SEO)

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