The precursory earthquake swarm in Greece
The Hellenic subduction region displays the same precursory swarm phenomenon as has been found in comparable regions of New Zealand and Japan. In the earthquake catalogue of the Aristotle University of Thessaloniki, 10 past sequences of precursory swarms and related major mainshock events have been...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2000-06-01
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| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/3678 |
| _version_ | 1811301581497303040 |
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| author | D. Rhoades F. Evison |
| author_facet | D. Rhoades F. Evison |
| author_sort | D. Rhoades |
| collection | DOAJ |
| description | The Hellenic subduction region displays the same precursory swarm phenomenon as has been found in comparable regions of New Zealand and Japan. In the earthquake catalogue of the Aristotle University of Thessaloniki, 10 past sequences of precursory swarms and related major mainshock events have been identified. These correlate, in respect of location, magnitude and time, with the 9 sequences previously identified in New Zealand, and 9 in Japan, bringing the total of sequences to 28, and the totals of related events (allowing for clustering) to 56 precursory swarms and 42 mainshock events. The results add strength to the hypothesis that swarms are long-range predictors of mainshock events. A close similarity between the swarm and aftershock magnitudes in a given sequence is also confirmed in Greece, supporting the proposal that swarms are an integral part of the seismogenic process in subduction regions. Further, the modelling of swarms as part of an overall increase in seismicity, the onset of which marks the onset of seismogenesis, is well illustrated from past sequences in Greece. Formal tests are being carried out in Greece, in parallel with New Zealand and Japan, to ascertain the performance of the hypothesis as a basis for long-range synoptic forecasting. |
| first_indexed | 2024-04-13T07:12:32Z |
| format | Article |
| id | doaj.art-70f71e5ad0f6492c8b03a27264725edd |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-04-13T07:12:32Z |
| publishDate | 2000-06-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-70f71e5ad0f6492c8b03a27264725edd2022-12-22T02:56:51ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2000-06-0143510.4401/ag-3678The precursory earthquake swarm in GreeceD. RhoadesF. EvisonThe Hellenic subduction region displays the same precursory swarm phenomenon as has been found in comparable regions of New Zealand and Japan. In the earthquake catalogue of the Aristotle University of Thessaloniki, 10 past sequences of precursory swarms and related major mainshock events have been identified. These correlate, in respect of location, magnitude and time, with the 9 sequences previously identified in New Zealand, and 9 in Japan, bringing the total of sequences to 28, and the totals of related events (allowing for clustering) to 56 precursory swarms and 42 mainshock events. The results add strength to the hypothesis that swarms are long-range predictors of mainshock events. A close similarity between the swarm and aftershock magnitudes in a given sequence is also confirmed in Greece, supporting the proposal that swarms are an integral part of the seismogenic process in subduction regions. Further, the modelling of swarms as part of an overall increase in seismicity, the onset of which marks the onset of seismogenesis, is well illustrated from past sequences in Greece. Formal tests are being carried out in Greece, in parallel with New Zealand and Japan, to ascertain the performance of the hypothesis as a basis for long-range synoptic forecasting.http://www.annalsofgeophysics.eu/index.php/annals/article/view/3678precursors swarmseismogenesisearthquake predictionHellenic arc |
| spellingShingle | D. Rhoades F. Evison The precursory earthquake swarm in Greece Annals of Geophysics precursors swarm seismogenesis earthquake prediction Hellenic arc |
| title | The precursory earthquake swarm in Greece |
| title_full | The precursory earthquake swarm in Greece |
| title_fullStr | The precursory earthquake swarm in Greece |
| title_full_unstemmed | The precursory earthquake swarm in Greece |
| title_short | The precursory earthquake swarm in Greece |
| title_sort | precursory earthquake swarm in greece |
| topic | precursors swarm seismogenesis earthquake prediction Hellenic arc |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/3678 |
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