Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/12288
DC Field | Value | Language |
---|---|---|
dc.date.accessioned | 2019-02-25T08:48:24Z | en |
dc.date.available | 2019-02-25T08:48:24Z | en |
dc.date.issued | 2018-05 | en |
dc.identifier.uri | http://hdl.handle.net/2122/12288 | en |
dc.description.abstract | On Aug. 21, 2017, a MD4.0 earthquake struck Ischia island, claiming two lives and provoking severe building damages, disproportionate to the moderate magnitude of the event. Hypocenter locations based on arrival times were afflicted by a large uncertainty and the proposed moment tensor solutions resulted inconsistent among themselves. These contradictory observations gave motivation to recalculate earthquake parameters by alternative approaches. P-phase particle motion, the evaluation of the rotated spectra, and ts-tp lead to a hypocentral depth of 2 km, in the same epicentral area as the devastating seismic event that struck Ischia in 1883. The full moment tensor solution reveals non-double couple contributions of 62%—fitting best for a shallower source depth and estimating a higher magnitude of Mw4.2. To fit the first motion polarity mismatch observed at the closest station IOCA we suggest a complex rupture process, where a first shallow normal faulting event activates a subsequent collapse. | en |
dc.language.iso | English | en |
dc.relation.ispartof | 2018 Annual Meeting Seismological Society of America | en |
dc.rights | CC0 1.0 Universal | en |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | en |
dc.subject | Ischia | en |
dc.subject | earthquake | en |
dc.subject | Full Moment Tensor | en |
dc.subject | collapse | en |
dc.title | Constraints on the source mechanism of the damaging seismic event of August 21, 2017, on Ischia island (southern Italy) | en |
dc.type | Conference paper | en |
dc.description.status | Published | en |
dc.identifier.doi | 10.1785/0220180082 | en |
dc.description.ConferenceLocation | Miami, Florida | en |
dc.description.obiettivoSpecifico | 3T. Sorgente sismica | en |
dc.contributor.author | Braun, Thomas | en |
dc.contributor.author | Famiani, Daniela | en |
dc.contributor.author | Cesca, Simone | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | en |
dc.contributor.department | GFZ German Research Centre for Geosciences, Potsdam, Germany | en |
item.openairetype | Conference paper | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | GFZ - Potsdam, Germany | - |
crisitem.author.orcid | 0000-0003-1778-1328 | - |
crisitem.author.orcid | 0000-0001-8020-2152 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
Files in This Item:
File | Description | Size | Format | |
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Poster-SSA2018-Famiani_small.pdf | 2.28 MB | Adobe PDF | View/Open |
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