Overall Red Earthquake in Russia on 29 Jul 2025 23:24 UTC

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

M 8.8 Earthquake and Tsunami (9.9 m) in Russia on 29 Jul 2025 23:24 UTC

2025-07-30 11:22 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)
Amchitka (Alaska)	51.57	178.88	00:56	0.55	-
Atka (Alaska)	52.19	-174.21	21:49	0.46	-
Adak (Alaska)	-	-	23:21	0.82	-
Nikolski (Alaska)	52.93	-168.85	22:27	0.37	-
Langara (BC)	-	-	01:53	0.15	-
Mothra Endeavour (Canada)	-	-	17:31	0.09	-
Main Endeavour Field (CA)	-	-	17:39	0.09	-
Winter Harbour (BC)	-	-	23:50	0.21	-
Tofino British (Columbia)	-	-	01:56	0.15	-
Port Orford (Oregon)	42.75	-124.48	01:27	0.43	-
La Push (Washington)	47.9	-124.62	00:24	0.21	-
Neah Bay (Washington)	48.36	-124.62	01:25	0.09	-
Charleston (Oregon)	43.34	-124.33	00:30	0.21	-
Humboldt Bay (California)	-	-	01:32	0.37	-
Crescent City (CA)	-	-	01:44	1.10	-
Bamfield (BC)	-	-	00:53	0.12	-
Newport (Oregon)	44.64	-124.04	00:42	0.15	-
Westport South Bay (WA)	-	-	00:43	0.15	-
Arena Cove (California)	-	-	01:18	0.91	-
Toke Point (Washington)	-	-	00:53	0.12	-
Point Reyes (California)	-	-	00:56	0.24	-
Monterey (California)	36.61	-121.91	00:51	0.34	-
Port Angeles (Washington)	48.14	-123.44	18:18	0.09	-
Victoria Harbor (BC)	-	-	01:23	0.06	-
Bella Bella (BC)	-	-	17:24	0.15	-
Port San Luis (CA)	-	-	02:00	0.40	-
San Francisco (CA)	-	-	01:17	0.24	-
Richmond (California)	37.95	-122.36	01:36	0.12	-
Santa Monica (California)	34.01	-118.49	01:52	0.15	-
La Jolla (California)	32.85	-117.27	01:54	0.12	-
Bella Bella (BC)	-	-	23:50	0.21	-
Nikolskoe (Russia)	54.3	35.88	17:14	0.06	-
Port Alberni (BC)	-	-	01:07	0.37	-

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
NTWC	Amchitka (Alaska)	51.57	178.88	00:56	0.55	-
NTWC	Atka (Alaska)	52.19	-174.21	21:49	0.46	-
NTWC	Adak (Alaska)	-	-	23:21	0.82	-
NTWC	Nikolski (Alaska)	52.93	-168.85	22:27	0.37	-
NTWC	Langara (BC)	-	-	01:53	0.15	-
NTWC	Mothra Endeavour (Canada)	-	-	17:31	0.09	-
NTWC	Main Endeavour Field (CA)	-	-	17:39	0.09	-
NTWC	Winter Harbour (BC)	-	-	23:50	0.21	-
NTWC	Tofino British (Columbia)	-	-	01:56	0.15	-
NTWC	Port Orford (Oregon)	42.75	-124.48	01:27	0.43	-
NTWC	La Push (Washington)	47.9	-124.62	00:24	0.21	-
NTWC	Neah Bay (Washington)	48.36	-124.62	01:25	0.09	-
NTWC	Charleston (Oregon)	43.34	-124.33	00:30	0.21	-
NTWC	Humboldt Bay (California)	-	-	01:32	0.37	-
NTWC	Crescent City (CA)	-	-	01:44	1.10	-
NTWC	Bamfield (BC)	-	-	00:53	0.12	-
NTWC	Newport (Oregon)	44.64	-124.04	00:42	0.15	-
NTWC	Westport South Bay (WA)	-	-	00:43	0.15	-
NTWC	Arena Cove (California)	-	-	01:18	0.91	-
NTWC	Toke Point (Washington)	-	-	00:53	0.12	-
NTWC	Point Reyes (California)	-	-	00:56	0.24	-
NTWC	Monterey (California)	36.61	-121.91	00:51	0.34	-
NTWC	Port Angeles (Washington)	48.14	-123.44	18:18	0.09	-
NTWC	Victoria Harbor (BC)	-	-	01:23	0.06	-
NTWC	Bella Bella (BC)	-	-	17:24	0.15	-
NTWC	Port San Luis (CA)	-	-	02:00	0.40	-
NTWC	San Francisco (CA)	-	-	01:17	0.24	-
NTWC	Richmond (California)	37.95	-122.36	01:36	0.12	-
NTWC	Santa Monica (California)	34.01	-118.49	01:52	0.15	-
NTWC	La Jolla (California)	32.85	-117.27	01:54	0.12	-
NTWC	Nikolskoe (Russia)	54.3	35.88	17:14	0.06	-
NTWC	Port Alberni (BC)	-	-	01:07	0.37	-

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