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15 Jan 2022 | 07:21 AM UTC

Tonga: Authorities issue nationwide tsunami warning Jan. 15 following new volcanic activity at Hunga Tonga-Hunga Ha'apai Volcano /update 2

Tonga issues new nationwide tsunami warning following volcanic activity at Hunga Tonga-Hunga Ha'apai Jan. 15. Avoid coastal areas.

Warning

Event

Authorities in Tonga issued a new nationwide tsunami warning at around 18:00 Jan. 15 following recent volcanic activity is ongoing at the Hunga Tonga-Hunga-Ha'apai Volcano. According to initial reports, tidal waves crossed the shoreline of Nuku'alofa and flooded some properties. The volcano is located around 65 km (40 miles) north-northwest of Nuku'alofa, and the island the volcano is located on is uninhabited.

The public is advised to stay away from low-lying coastal areas, beaches, and harbor areas and to avoid swimming and any related activities until the warning is canceled. No evacuation orders have been issued.

Additional eruptions could cause gas emission, low-level seismic activity, ash clouds, and landslides in the surrounding area. The volcano could emit gas and ash clouds over the coming days.

Transport
Authorities have suspended domestic flights on the islands of Ha'apai due to ashfall. Transport disruptions are possible in the surrounding area, especially if a significant eruptive event occurs. Fine particulate matter ejected from the volcano could pose a hazard to flights in the surrounding airspace.

Health
Volcanic activity may impact air quality in the surrounding area. Following an explosive event, air quality could become a concern, particularly in areas near the crater. Individuals in the region - especially those with underlying pulmonary conditions such as asthma, chronic obstructive pulmonary disease (COPD), or lung cancers - may experience difficulty breathing and could suffer from lower tolerance to physical exertion.

Advice

Confirm flights if a large eruption occurs. Plan for possible transportation disruptions if operating in the region in the coming days. Seek updated information on road conditions before driving; due to reduced visibility, drive cautiously in areas affected by ash. Carry masks or face coverings and observe other precautions to avoid ash inhalation if operating in the affected area.

Resources

Volcano Discovery
Tonga Meteorological Service