Overall Orange Earthquake in Kermadec Islands, New Zealand on 04 Mar 2021 19:28 UTC

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M 8.1 Earthquake and Tsunami (2.2 m) in Kermadec Islands, New Zealand on 04 Mar 2021 19:28 UTC

2021-03-05 10:24 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 8.1 occurred in the kermadec ISLANDS region at 1928 UTC on thursday MARCH 4 2021
TSUNAMI waves have been observed
Based on all available data hazardous TSUNAMI waves are forecast for some coasts

Threat Forecast

TSUNAMI waves reaching 0.3 to 1 meters above the tide level are possible for some coasts of antarctica... chile... colombia... COSTA RICA ecuador... mexico... nicaragua... panama... peru.
Actual amplitudes at the coast MAY vary from forecast amplitudes due to uncertainties in the forecast and local features. in particular maximum TSUNAMI amplitudes on atolls and at locations with fringing or barrier reefs will likely be much smaller than the forecast indicates.
For other areas covered by this product a forecast has not yet been computed. the forecast will be expanded if necessary in subsequent products.

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)
Baltra Galapags Ec	-0.4	-90.3	10: 15	0.12	14
Santacruz Galapago	-0.7	-90.3	10: 00	0.48	16
Coquimbo Cl	-30	-71.3	09: 29	0.12	16
Valparaiso Cl	-33	-71.6	09: 11	0.10	08
Queule Cl	-39.4	-73.2	09: 02	0.12	12
Corral Cl	-39.9	-73.4	08: 45	0.11	12
Quintero Cl	-32.8	-71.5	09: 02	0.06	12
Bahia Mansa Cl	-40.6	-73.7	09: 01	0.31	08
Lebu Cl	-37.6	-73.7	08: 28	0.14	14
Port San Luis Ca	35.2	-120.8	08: 11	0.09	16
Hilo Hawaii	19.7	-155.1	05: 57	0.09	16
Kawaihae Hawaii	20	-155.8	05: 26	0.05	08
Easter Cl	-27.2	-109.4	05: 26	0.19	06
Haleiwa Hi	21.6	-158.1	04: 01	0.05	06
Kahului Maui	20.9	-156.5	04: 26	0.18	20
Makai Pier Waimana	21.3	-157.7	04: 27	0.10	08
Honolulu Oahu	21.3	-157.9	04: 09	0.08	12
Nawiliwili Kauai	22	-159.4	03: 46	0.06	22
Barbers Pt Hi	21.3	-158.1	03: 51	0.10	04
Luganville Vu	-15.5	167.2	01: 25	0.11	38
Hienghene New Cale	-20.7	164.9	00: 52	0.08	24
Ouinne New Caledon	-22	166.7	02: 08	0.19	28
Port Kembla Au	-34.5	150.9	02: 12	0.16	16
Hiva Oa Marquesas	-9.8	-139	01: 55	0.23	14
Rikitea Pf	-23.1	-135	01: 33	0.08	16
Nuku Hiva Marquesa	-8.9	-140.1	01: 43	0.25	12
Papeete Tahiti	-17.5	-149.6	23: 38	0.17	14
Huahine Pf	-16.7	-151	23: 49	0.10	06
Lenakel Vu	-19.5	169.3	22: 49	0.30	12
Mare New Caledonia	-21.5	167.9	23: 22	0.11	08
Lautoka Fj	-17.6	177.4	23: 25	0.03	20
Suva Viti Levu Fj	-18.1	178.4	22: 20	0.08	38
Tubuai Pf	-23.3	-149.5	23: 13	0.08	16
Kingston Norfolk I	-29.1	168	22: 39	0.56	10
Great Barrier Is N	-36.2	175.5	22: 48	0.30	06
Apia Upolu Ws	-13.8	-171.8	22: 41	0.03	12
North Cape Nz	-34.4	173	21: 50	0.15	32
East Cape Nz	-37.6	178.2	21: 53	0.16	14
Nukualofa To	-21.1	-175.2	21: 29	0.05	30

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
PTWC	Baltra Galapags Ec	-0.4	-90.3	10: 15	0.12	14
PTWC	Santacruz Galapago	-0.7	-90.3	10: 00	0.48	16
PTWC	Coquimbo Cl	-30	-71.3	09: 29	0.12	16
PTWC	Valparaiso Cl	-33	-71.6	09: 11	0.10	08
PTWC	Queule Cl	-39.4	-73.2	09: 02	0.12	12
PTWC	Corral Cl	-39.9	-73.4	08: 45	0.11	12
PTWC	Quintero Cl	-32.8	-71.5	09: 02	0.06	12
PTWC	Bahia Mansa Cl	-40.6	-73.7	09: 01	0.31	08
PTWC	Lebu Cl	-37.6	-73.7	08: 28	0.14	14
PTWC	Port San Luis Ca	35.2	-120.8	08: 11	0.09	16
PTWC	Hilo Hawaii	19.7	-155.1	05: 57	0.09	16
PTWC	Kawaihae Hawaii	20	-155.8	05: 26	0.05	08
PTWC	Easter Cl	-27.2	-109.4	05: 26	0.19	06
PTWC	Haleiwa Hi	21.6	-158.1	04: 01	0.05	06
PTWC	Kahului Maui	20.9	-156.5	04: 26	0.18	20
PTWC	Makai Pier Waimana	21.3	-157.7	04: 27	0.10	08
PTWC	Honolulu Oahu	21.3	-157.9	04: 09	0.08	12
PTWC	Nawiliwili Kauai	22	-159.4	03: 46	0.06	22
PTWC	Barbers Pt Hi	21.3	-158.1	03: 51	0.10	04
PTWC	Luganville Vu	-15.5	167.2	01: 25	0.11	38
PTWC	Hienghene New Cale	-20.7	164.9	00: 52	0.08	24
PTWC	Ouinne New Caledon	-22	166.7	02: 08	0.19	28
PTWC	Port Kembla Au	-34.5	150.9	02: 12	0.16	16
PTWC	Hiva Oa Marquesas	-9.8	-139	01: 55	0.23	14
PTWC	Rikitea Pf	-23.1	-135	01: 33	0.08	16
PTWC	Nuku Hiva Marquesa	-8.9	-140.1	01: 43	0.25	12
PTWC	Papeete Tahiti	-17.5	-149.6	23: 38	0.17	14
PTWC	Huahine Pf	-16.7	-151	23: 49	0.10	06
PTWC	Lenakel Vu	-19.5	169.3	22: 49	0.30	12
PTWC	Mare New Caledonia	-21.5	167.9	23: 22	0.11	08
PTWC	Lautoka Fj	-17.6	177.4	23: 25	0.03	20
PTWC	Suva Viti Levu Fj	-18.1	178.4	22: 20	0.08	38
PTWC	Tubuai Pf	-23.3	-149.5	23: 13	0.08	16
PTWC	Kingston Norfolk I	-29.1	168	22: 39	0.56	10
PTWC	Great Barrier Is N	-36.2	175.5	22: 48	0.30	06
PTWC	Apia Upolu Ws	-13.8	-171.8	22: 41	0.03	12
PTWC	North Cape Nz	-34.4	173	21: 50	0.15	32
PTWC	East Cape Nz	-37.6	178.2	21: 53	0.16	14
PTWC	Nukualofa To	-21.1	-175.2	21: 29	0.05	30

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