UPDATE: NO Tsunami Threat to Hawai‘i After 8.1 Chiapas, Mexico Quake

Chiapas earthquake, 9.7.17. PC: USGS/Pacific Tsunami Warning Center.

The Pacific Tsunami Warning Center says there is NO tsunami threat to Hawaii after an 8.1 (preliminary 8.0) magnitude earthquake reported at 6:49 p.m. HST on Thursday, Sept. 7, 2017 off the coast of Chiapas, Mexico.

The agency issued an update at 8:27 p.m. HST saying that based on all available data, there is no tsunami threat to Hawaii.

This will be the final statement issued for this event unless additional data is received.

The agency did issue a tsunami threat message for other parts of the Pacific located closer to the earthquake’s epicenter.

The USGS reports that the quake occurred at a depth of 35 km and was located:

• 60 miles SW of Pijijiapan, Chiapas, Mexico
• 66 miles WSW of Mapastepec, Chiapas, Mexico
• 73 miles S of Tonal, Chiapas, Mexico
  102 miles W of Tapachula, Chiapas, Mexico
• 221 miles W of GUATEMALA CITY, Guatemala

According to initial reports, there were multiple reports of the quake being felt in: Santa Catarina Pinula, Guatemala; Mexico City, Distrito Federal; and Antigua Guatemala, Sacatepéquez.

*Check back for updates, which will be posted as they become available. 

Additional Information:

ESTIMATED TIMES OF ARRIVAL
————————–

* ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
FOR PLACES WITHIN THREATENED REGIONS ARE GIVEN BELOW. ACTUAL
ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION         REGION             COORDINATES    ETA(UTC)
————————————————————
SIPICATE         GUATEMALA         13.9N  91.2W   0604 09/08
ACAJUTLA         EL SALVADOR       13.6N  89.8W   0610 09/08
LAZARO CARDENAS  MEXICO            17.9N 102.2W   0619 09/08
BALTRA ISLAND    ECUADOR            0.5S  90.3W   0804 09/08
HIVA OA          FRENCH POLYNESIA  10.0S 139.0W   1248 09/08
CHRISTMAS ISLAN  KIRIBATI           2.0N 157.5W   1422 09/08
MALDEN ISLAND    KIRIBATI           3.9S 154.9W   1426 09/08
FLINT ISLAND     KIRIBATI          11.4S 151.8W   1426 09/08
PAPEETE          FRENCH POLYNESIA  17.5S 149.6W   1450 09/08
RAPA ITI         FRENCH POLYNESIA  27.6S 144.3W   1502 09/08
PENRYN ISLAND    COOK ISLANDS       8.9S 157.8W   1505 09/08
TUBUAI           FRENCH POLYNESIA  23.3S 149.5W   1510 09/08
RAROTONGA        COOK ISLANDS      21.2S 159.8W   1609 09/08
PUKAPUKA ISLAND  COOK ISLANDS      10.8S 165.9W   1619 09/08
NUKUNONU ISLAND  TOKELAU            9.2S 171.8W   1652 09/08
PAGO PAGO        AMERICAN SAMOA    14.3S 170.7W   1705 09/08
APIA             SAMOA             13.8S 171.8W   1714 09/08
WALLIS ISLAND    WALLIS AND FUTUN  13.3S 176.3W   1746 09/08
FUNAFUTI ISLAND  TUVALU             7.9S 178.5E   1751 09/08
FUTUNA ISLAND    WALLIS AND FUTUN  14.3S 178.2W   1812 09/08
TARAWA ISLAND    KIRIBATI           1.5N 173.0E   1832 09/08
SUVA             FIJI              18.1S 178.4E   1915 09/08
KAINGAROA CHATH  NEW ZEALAND       43.7S 176.3W   1955 09/08
WAITANGI CHATHA  NEW ZEALAND       43.9S 176.6W   1957 09/08
ESPERITU SANTO   VANUATU           15.1S 167.3E   1959 09/08
ANATOM ISLAND    VANUATU           20.2S 169.9E   2020 09/08
CAPE ADARE       ANTARCTICA        71.0S 170.0E   2155 09/08

POTENTIAL IMPACTS
—————–

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN… BE
CRUSHED BY DEBRIS IN THE WATER… OR BE SWEPT OUT TO SEA.

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      TIME OF   MAXIMUM     WAVE
COORDINATES   MEASURE   TSUNAMI   PERIOD
GAUGE LOCATION        LAT   LON     (UTC)     HEIGHT    (MIN)
————————————————————-
DART 32411            5.0N  90.8W    0623   0.02M/ 0.1FT  28
SALINA CRUZ MX       16.2N  95.2W    0635   1.01M/ 3.3FT  46
DART 43413           10.8N 100.1W    0547   0.08M/ 0.2FT  24
PURETO ANGEL MX      15.7N  96.5W    0517   0.29M/ 1.0FT  24
HUATULCO MX          15.8N  96.1W    0514   0.69M/ 2.3FT  12

Previous Post:

Chiapas earthquake, 9.7.17. PC: Pacific Tsunami Warning Center.

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
702 PM HST THU SEP 07 2017

TO – EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT – TSUNAMI INFORMATION STATEMENT

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0649 PM HST 07 SEP 2017
COORDINATES – 14.9 NORTH 94.0 WEST
LOCATION – OFF THE COAST OF CHIAPAS MEXICO
MAGNITUDE – 8.0 MOMENT

EVALUATION

THIS EARTHQUAKE AND ANY TSUNAMI THREAT TO HAWAII ARE STILL
UNDER EVALUATION. ADDITIONAL INFORMATION WILL BE ISSUED
AS SOON AS ADDITIONAL DATA ARE RECEIVED.

Chiapas, Mexico earthquake, 9.7.17. PC: USGS.

Chiapas, Mexico earthquake, 9.7.17. PC: USGS.