Significant Elastic Ground Deformations After the January 15, 2022 Hunga-Tonga Eruption

Long Tang; Wu Chen; Kai Zheng; Pan Li

doi:10.1109/LGRS.2025.3545686

Significant Elastic Ground Deformations After the January 15, 2022 Hunga-Tonga Eruption

Long Tang, Wu Chen, Kai Zheng, Pan Li

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

This study reports the unusual decimeter-scale elastic ground deformations observed by the Global Navigation Satellite System (GNSS) station TONG in Nuku’alofa after the tremendous January 15, 2022 Hunga-Tonga eruption. There are significant uplifts with a maximum of 0.35 m in the vertical direction; the elastic deformations are also obvious with a maximum of 0.15 m in the south direction while are very tiny in the east direction. In addition, the occurred period of the elastic deformations is consistent to the eruption-induced tsunamis recorded in a nearby tide gauge station. The characteristics of the observed elastic deformations confirm their link to the Hunga-Tonga eruption. The possible cause for the elastic deformations is the sustained thrusts from the eruption.

Original language	English
Article number	3001504
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	22
DOIs	https://doi.org/10.1109/LGRS.2025.3545686
Publication status	Published - 25 Feb 2025

Keywords

Global Navigation Satellite System (GNSS)
ground deformation
precise point positioning (PPP)
volcanic eruption

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Electrical and Electronic Engineering

More information

10.1109/LGRS.2025.3545686

Cite this

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title = "Significant Elastic Ground Deformations After the January 15, 2022 Hunga-Tonga Eruption",

abstract = "This study reports the unusual decimeter-scale elastic ground deformations observed by the Global Navigation Satellite System (GNSS) station TONG in Nuku{\textquoteright}alofa after the tremendous January 15, 2022 Hunga-Tonga eruption. There are significant uplifts with a maximum of 0.35 m in the vertical direction; the elastic deformations are also obvious with a maximum of 0.15 m in the south direction while are very tiny in the east direction. In addition, the occurred period of the elastic deformations is consistent to the eruption-induced tsunamis recorded in a nearby tide gauge station. The characteristics of the observed elastic deformations confirm their link to the Hunga-Tonga eruption. The possible cause for the elastic deformations is the sustained thrusts from the eruption.",

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AU - Tang, Long

AU - Chen, Wu

AU - Zheng, Kai

AU - Li, Pan

PY - 2025/2/25

Y1 - 2025/2/25

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AB - This study reports the unusual decimeter-scale elastic ground deformations observed by the Global Navigation Satellite System (GNSS) station TONG in Nuku’alofa after the tremendous January 15, 2022 Hunga-Tonga eruption. There are significant uplifts with a maximum of 0.35 m in the vertical direction; the elastic deformations are also obvious with a maximum of 0.15 m in the south direction while are very tiny in the east direction. In addition, the occurred period of the elastic deformations is consistent to the eruption-induced tsunamis recorded in a nearby tide gauge station. The characteristics of the observed elastic deformations confirm their link to the Hunga-Tonga eruption. The possible cause for the elastic deformations is the sustained thrusts from the eruption.

KW - Global Navigation Satellite System (GNSS)

KW - ground deformation

KW - precise point positioning (PPP)

KW - volcanic eruption

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DO - 10.1109/LGRS.2025.3545686

M3 - Journal article

AN - SCOPUS:105001063094

SN - 1545-598X

VL - 22

JO - IEEE Geoscience and Remote Sensing Letters

JF - IEEE Geoscience and Remote Sensing Letters

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Significant Elastic Ground Deformations After the January 15, 2022 Hunga-Tonga Eruption

Abstract

Keywords

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