Hunga Tonga-Hunga Ha'apai volcano (Tonga) activity update: tsunami hit the US and Mexico coast, shockwave detected across vast global areas
Sun, 16 Jan 2022, 02:28 | BY: MARTIN
High-resolution imagery of the eruption seen from space (image: Dakota Smith/twitter)
High-resolution imagery of the eruption on global scale seen from space (image: Dakota Smith/twitter)
Seismic signal of the shockwave detected by Icelandic Meteorological Office (image: Kristín Jónsdóttir/twitter)
Seismic signal of the shockwave detected by INVOLCAN in Canary Islands (image: INVOLCAN/twitter)
After almost 11 hours since the eruption started, the waves, about 3 ft (1 m) tall, hit the part of the west coast of the United States such as Santa Cruz, CA and the Oregon coast.
In about 1 hour later, waves (4.6 ft (1.4 m) have reached the coast of Mexico in Manzanillo port.
The tsunami was large enough to be felt on Hawai'i about 3,100 miles (5,000 km) away from the eruption site.
Elevated sea level has been reported in Ecuador.
Several dozen seismic stations of volcanological observatories detected the pressure wave from the eruption. Seismic signals of the shockwave were reported in Iceland, Canary Islands, Netherland, Alaska and USA.
As to what exactly caused the massive ocean wave and whether a collapse of the island, whether turbidity currents triggered, or whether the force of the explosion itself, is not clear yet, but the most likely scenario is the last option.
Propagation of the tsunami waves traveling toward the US west coast and Mexico (source: @angelruizangulo/twitter)
Tonga tsunami, quite impressive that it propagated all the way to stations in the coast of Mexico (Manzanillo over 1.4m) and California... Here is a order one attempt to model this tsunami @geosmx #geoclaw pic.twitter.com/drzz5GMHJK
— angel ruiz (@angelruizangulo) January 15, 2022
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15 minute pressure altimeter change via ASOS NWS/MADIS 5 minute interval data shows the shockwave from the eruption (source: NWS/MADIS)
15 minute pressure altimeter change via ASOS NWS/MADIS 5 minute interval data. Shows the shockwave from the #Tongaeruption , feel free to use as you wish. pic.twitter.com/P31Aq1SYku
— daryl herzmann (@akrherz) January 15, 2022
Waves approach at Ecuador coast (source: Ecuador En Directo/twitter)
#Importante Llegada de la ola de tsunami en Ecuador. pic.twitter.com/2eDWt1Si6n
— Ecuador En Directo (@EcEnDirecto) January 15, 2022
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