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Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 4h

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 · 4h

* Depth 43 miles
* Location in Irian Jaya, Indonesia

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

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Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 4h

PRELIMINARY EARTHQUAKE PARAMETERS
---

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

* Magnitude 6.7
* Origin Time 2149 AKDT Oct 15 2025
2249 PDT Oct 15 2025
0549 UTC Oct 16 2025
* Coordinates 2.3 South 138.9 East

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Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 4h

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 · 4h

. 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 · 4h

#Earthquake
M6.7 earthquake in Irian Jaya, Indonesia 22:48PDT Oct 15 Depth 70km

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

1 1 2

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

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 · 8h

1843 PDT Oct 15 2025
0143 UTC Oct 16 2025
* Coordinates 60.0 South 61.7 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

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 · 8h

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 6.6
* Origin Time 1743 AKDT Oct 15 2025

1

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

#Earthquake
M6.6 earthquake near the Drake Passage, south of South America 18:42PDT Oct 15 Depth 10km: Tsunami NOT expected

An earthquake has occurred; a tsunami is not expected.

1 1 2

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

* Caribbean coastal regions 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 · 8h

0943 AST Oct 15 2025
0143 UTC Oct 16 2025
* Coordinates 60.0 South 61.7 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

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

1

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

* An earthquake has occurred with parameters listed below.

PRELIMINARY EARTHQUAKE PARAMETERS
---

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

* Magnitude 6.6
* Origin Time 2143 EDT Oct 15 2025
2043 CDT Oct 15 2025

1

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

nami.gov for more Info.

EVALUATION
---
* There is no tsunami danger for the U.S. east coast, the Gulf of
America states, or the eastern coast of Canada.

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

1

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

tes, or the eastern coast of Canada. 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 tsu

1

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

#Earthquake
M6.6 earthquake near the Drake Passage, south of South America 18:42PDT Oct 15 Depth 10km

Tsunami NOT expected for the US east coast, the Gulf of America sta...

1 1 2

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

message issued for this event unless additional information
becomes available.

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

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

* This will be the only U.S. National Tsunami Warning Center

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

assessment of the earthquake and changes may occur.

* Magnitude 7.8
* Origin Time 1229 AKDT Oct 10 2025
1329 PDT Oct 10 2025
2029 UTC Oct 10 2025
* Coordinates 60.3 South 61.9 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

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

* Earthquakes of this size are known to generate tsunamis dangerous to shorelines near the source.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* The following parameters are based on a rapid preliminary

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

#Earthquake
M7.8 earthquake near the Drake Passage, south of South America 13:29PDT Oct 10 Depth 10km

An earthquake has occurred; a tsunami is not expected.

1 2 3

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

* Caribbean coastal regions 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 · 5d

0429 AST Oct 10 2025
2029 UTC Oct 10 2025
* Coordinates 60.3 South 61.9 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

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

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

* An earthquake has occurred with parameters listed below.

PRELIMINARY EARTHQUAKE PARAMETERS
---

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

* Magnitude 7.8
* Origin Time 1629 EDT Oct 10 2025
1529 CDT Oct 10 2025

1

Tsunami Alerts (NTWC) from US National Tsunami Warning Center @tsunamialertsntwc.bsky.social · 5d

more Info.

EVALUATION
---
* There is no tsunami danger for the U.S. east coast, the Gulf of
America states, or the eastern coast of Canada.

* Earthquakes of this size are known to generate tsunamis
dangerous to shorelines near the source.

1