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Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

Warning Center messages at tsunami.gov.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

* Location in the eastern New Guinea Region, PNG

ADDITIONAL INFORMATION AND NEXT UPDATE
---
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal regions outside California, Oregon, Washington,
British Columbia, and Alaska should refer to the Pacific Tsunami

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 6.7
* Origin Time 0305 AKDT Oct 07 2025
0405 PDT Oct 07 2025
1105 UTC Oct 07 2025
* Coordinates 6.7 South 146.8 East
* Depth 66 miles

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

* There is no tsunami danger for the U.S. West Coast, British
Columbia, or Alaska.

* Based on the depth of the earthquake, a tsunami is not
expected.

* An earthquake has occurred with parameters listed below.

PRELIMINARY EARTHQUAKE PARAMETERS
---

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

. Based on the depth of the earthquake, a tsunami is not expected. This will be the only U.S. National Tsunami Warning Center message for this event unless additional Info becomes available. Refer to the internet site tsunami.gov for more Info.

EVALUATION
---

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

#Earthquake
M6.7 earthquake in the eastern New Guinea Region, PNG 04:05PDT Oct 7 Depth 107km

Tsunami NOT expected for the US West Coast, British Columbia, or Alaska...

1 2 3

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

Geological Survey (earthquake.usgs.gov) or the appropriate
regional seismic network.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

1653 UTC Oct 06 2025
* Coordinates 31.3 North 116.1 West
* Depth 1 miles
* Location 105 miles SW of El Centro, California
225 miles SE of Los Angeles, California

ADDITIONAL INFORMATION AND NEXT UPDATE
---
* Further information will be issued by the United States

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

EVALUATION
---
* There is NO tsunami danger from this earthquake.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 4.6
* Origin Time 0853 AKDT Oct 06 2025
0953 PDT Oct 06 2025

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 2d

#Earthquake
M4.6 earthquake 105 miles SW of El Centro, California 09:53PDT Oct 6 Depth 1km: Tsunami NOT expected

1 4 5

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

British Columbia, and Alaska should refer to the Pacific Tsunami
Warning Center messages at tsunami.gov.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

* Depth 6 miles
* Location in Leyte, Philippine Islands

ADDITIONAL INFORMATION AND NEXT UPDATE
---
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal regions outside California, Oregon, Washington,

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

PRELIMINARY EARTHQUAKE PARAMETERS
---

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 7.0
* Origin Time 0600 AKDT Sep 30 2025
0700 PDT Sep 30 2025
1400 UTC Sep 30 2025
* Coordinates 11.1 North 124.3 East

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

EVALUATION
---
* There is no tsunami danger for the U.S. West Coast, British
Columbia, or Alaska.

* Based on earthquake information and historic tsunami records,
the earthquake is not expected to generate a tsunami.

* An earthquake has occurred with parameters listed below.

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

. Based on earthquake Info and historic tsunami records, the earthquake is not expected to generate a tsunami. This will be the only U.S. National Tsunami Warning Center message for this event unless additional Info becomes available. Refer to the internet site tsunami.gov for more Info.

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 8d

#Earthquake
M7.0 earthquake in Leyte, Philippine Islands 06:59PDT Sep 30 Depth 10km

Tsunami NOT expected for the US West Coast, British Columbia, or Alaska...

1 3 4

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 11d

regional seismic network.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 11d

2213 UTC Sep 27 2025
* Coordinates 43.6 North 127.6 West
* Depth 7 miles
* Location off the coast of Oregon

ADDITIONAL INFORMATION AND NEXT UPDATE
---
* Further information will be issued by the United States
Geological Survey (earthquake.usgs.gov) or the appropriate

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 11d

EVALUATION
---
* There is NO tsunami danger from this earthquake.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 5.2
* Origin Time 1413 AKDT Sep 27 2025
1513 PDT Sep 27 2025

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 11d

#Earthquake
M5.2 earthquake off the coast of Oregon 15:12PDT Sep 27 Depth 12km: Tsunami NOT expected

1 2 7

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 13d

Geological Survey (earthquake.usgs.gov) or the appropriate
regional seismic network.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 13d

2346 PDT Sep 25 2025
0646 UTC Sep 26 2025
* Coordinates 43.7 North 127.0 West
* Depth 9 miles
* Location off the coast of Oregon

ADDITIONAL INFORMATION AND NEXT UPDATE
---
* Further information will be issued by the United States

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 13d

EVALUATION
---
* An earthquake has occurred; a tsunami is not expected.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 5.9
* Origin Time 2246 AKDT Sep 25 2025

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 13d

#Earthquake
M5.9 earthquake off the coast of Oregon 23:45PDT Sep 25 Depth 14km: Tsunami NOT expected

An earthquake has occurred; a tsunami is not expected.

1 2 3

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 14d

Tsunami Warning Center messages at tsunami.gov.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.