| Title: |
Detectability of Seamount Eruptions Through a Quantum Technology Gravity Mission MOCAST+: Hunga Tonga, Fani Maoré and Other Smaller Eruptions |
| Authors: |
Braitenberg C.; Pastorutti A. |
| Contributors: |
Braitenberg, C.; Pastorutti, A. |
| Publication Year: |
2024 |
| Collection: |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
| Subject Terms: |
Axial; El Hierro; Fani Maoré; GRACE-FO; Hunga Tonga Hunga Ha’apai; Mayotte; Quantum gravimetry; Satellite gravity mission; Seamount eruption; Sensitivity to mass change; Surtsey |
| Description: |
Seamount eruptions alter the bathymetry and can occur undetected due to lack of explosive character. We review documented eruptions to define whether they could be detected by a future satellite gravity mission. We adopt the noise level in acquisitions of multi-satellite constellations as in the MOCAST+ study, with a proposed payload of a quantum technology gradiometer and clock. The review of underwater volcanoes includes the Hunga Tonga Hunga Ha’apai (HTHH) islands for which the exposed surface changed during volcanic unrests of 2014/2015 and 2021/2022. The Fani Maoré submarine volcanic eruption of 2018–2021 produced a new seamount 800 m high, emerging from a depth of 3500 m, and therefore not seen above sea surface. We review further documented submarine eruptions and estimate the upper limit of the expected gravity changes. We find that a MOCAST+ type mission should allow us to detect the subsurface mass changes generated by deep ocean submarine volcanic activity for volume changes of 6.5 km3 upwards, with latency of 1 year. This change is met by the HTHH and Fani Maoré volcanoes. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:001220430200001; volume:45; issue:4; firstpage:1331; lastpage:1361; numberofpages:31; journal:SURVEYS IN GEOPHYSICS; https://hdl.handle.net/11368/3109139 |
| DOI: |
10.1007/s10712-024-09839-7 |
| Availability: |
https://hdl.handle.net/11368/3109139; https://doi.org/10.1007/s10712-024-09839-7; https://link.springer.com/article/10.1007/s10712-024-09839-7 |
| Rights: |
info:eu-repo/semantics/openAccess ; license:Creative commons ; license uri:http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.9A3F4DF5 |
| Database: |
BASE |