Overall Green Earthquake alert in United States on 23 Jan 2018 09:31 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 7.9 in United States on 23 Jan 2018 09:31 UTC

2018-01-23 12:46 message from NTWC

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Kodiak (Alaska)	57.79	-152.42	03:29	0.18	-
Seward (Alaska)	60.13	-149.45	03:31	0.12	-
Old Harbor (Alaska)	57.2	-153.31	03:38	0.21	-
Sitka (Alaska)	57.05	-135.32	03:18	0.12	-
Yakutat (Alaska)	59.56	-139.73	03:35	0.15	-
Langara (BC)	-	-	03:30	0.12	-

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
NTWC	Kodiak (Alaska)	57.79	-152.42	03:29	0.18	-
NTWC	Seward (Alaska)	60.13	-149.45	03:31	0.12	-
NTWC	Old Harbor (Alaska)	57.2	-153.31	03:38	0.21	-
NTWC	Sitka (Alaska)	57.05	-135.32	03:18	0.12	-
NTWC	Yakutat (Alaska)	59.56	-139.73	03:35	0.15	-
NTWC	Langara (BC)	-	-	03:30	0.12	-

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