Statistical analysis of fireballs: Seismic signature survey
Fireballs are infrequently recorded by seismic sensors on the ground. If recorded, they are usually reported as one-off events. This study is the first seismic bulk analysis of the largest single fireball data set, observed by the Desert Fireball Network (DFN) in Australia in the period 2014-2019. T...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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CAMBRIDGE UNIV PRESS
2021
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| Online Access: | http://dx.doi.org/10.1017/pasa.2021.11 http://hdl.handle.net/20.500.11937/90195 |
| _version_ | 1848765350745735168 |
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| author | Neidhart, Tanja Miljkovic, Katarina Sansom, Ellie Devillepoix, Hadrien Kawamura, T. Dimech, J.L. Wieczorek, M.A. Bland, Phil |
| author_facet | Neidhart, Tanja Miljkovic, Katarina Sansom, Ellie Devillepoix, Hadrien Kawamura, T. Dimech, J.L. Wieczorek, M.A. Bland, Phil |
| author_sort | Neidhart, Tanja |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Fireballs are infrequently recorded by seismic sensors on the ground. If recorded, they are usually reported as one-off events. This study is the first seismic bulk analysis of the largest single fireball data set, observed by the Desert Fireball Network (DFN) in Australia in the period 2014-2019. The DFN typically observes fireballs from cm-m scale impactors. We identified 25 fireballs in seismic time series data recorded by the Australian National Seismograph Network (ANSN). This corresponds to 1.8% of surveyed fireballs, at the kinetic energy range of 106-1010 J. The peaks observed in the seismic time series data were consistent with calculated arrival times of the direct airwave or ground-coupled Rayleigh wave caused by shock waves by the fireball in the atmosphere (either due to fragmentation or the passage of the Mach cone). Our work suggests that identification of fireball events in the seismic time series data depends on both physical properties of a fireball (such as fireball energy and entry angle in the atmosphere) and the sensitivity of a seismic instrument. This work suggests that fireballs are likely detectable within 200 km direct air distance between a fireball and seismic station, for sensors used in the ANSN. If each DFN observatory had been accompanied by a seismic sensor of similar sensitivity, 50% of surveyed fireballs could have been detected. These statistics justify the future consideration of expanding the DFN camera network into the seismic domain. |
| first_indexed | 2025-11-14T11:33:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-90195 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:33:52Z |
| publishDate | 2021 |
| publisher | CAMBRIDGE UNIV PRESS |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-901952023-02-20T07:25:13Z Statistical analysis of fireballs: Seismic signature survey Neidhart, Tanja Miljkovic, Katarina Sansom, Ellie Devillepoix, Hadrien Kawamura, T. Dimech, J.L. Wieczorek, M.A. Bland, Phil Science & Technology Physical Sciences Astronomy & Astrophysics fireball impact seismic observation sensitivity METEORITE FALL PEEKSKILL METEORITE SEPTEMBER 15 DYNAMICS BOLIDE ORBIT NEUSCHWANSTEIN EVENT MASS Fireballs are infrequently recorded by seismic sensors on the ground. If recorded, they are usually reported as one-off events. This study is the first seismic bulk analysis of the largest single fireball data set, observed by the Desert Fireball Network (DFN) in Australia in the period 2014-2019. The DFN typically observes fireballs from cm-m scale impactors. We identified 25 fireballs in seismic time series data recorded by the Australian National Seismograph Network (ANSN). This corresponds to 1.8% of surveyed fireballs, at the kinetic energy range of 106-1010 J. The peaks observed in the seismic time series data were consistent with calculated arrival times of the direct airwave or ground-coupled Rayleigh wave caused by shock waves by the fireball in the atmosphere (either due to fragmentation or the passage of the Mach cone). Our work suggests that identification of fireball events in the seismic time series data depends on both physical properties of a fireball (such as fireball energy and entry angle in the atmosphere) and the sensitivity of a seismic instrument. This work suggests that fireballs are likely detectable within 200 km direct air distance between a fireball and seismic station, for sensors used in the ANSN. If each DFN observatory had been accompanied by a seismic sensor of similar sensitivity, 50% of surveyed fireballs could have been detected. These statistics justify the future consideration of expanding the DFN camera network into the seismic domain. 2021 Journal Article http://hdl.handle.net/20.500.11937/90195 10.1017/pasa.2021.11 English http://dx.doi.org/10.1017/pasa.2021.11 http://purl.org/au-research/grants/arc/DP180100661 http://purl.org/au-research/grants/arc/DE180100584 http://purl.org/au-research/grants/arc/DP170102529 http://purl.org/au-research/grants/arc/DP200102073 CAMBRIDGE UNIV PRESS fulltext |
| spellingShingle | Science & Technology Physical Sciences Astronomy & Astrophysics fireball impact seismic observation sensitivity METEORITE FALL PEEKSKILL METEORITE SEPTEMBER 15 DYNAMICS BOLIDE ORBIT NEUSCHWANSTEIN EVENT MASS Neidhart, Tanja Miljkovic, Katarina Sansom, Ellie Devillepoix, Hadrien Kawamura, T. Dimech, J.L. Wieczorek, M.A. Bland, Phil Statistical analysis of fireballs: Seismic signature survey |
| title | Statistical analysis of fireballs: Seismic signature survey |
| title_full | Statistical analysis of fireballs: Seismic signature survey |
| title_fullStr | Statistical analysis of fireballs: Seismic signature survey |
| title_full_unstemmed | Statistical analysis of fireballs: Seismic signature survey |
| title_short | Statistical analysis of fireballs: Seismic signature survey |
| title_sort | statistical analysis of fireballs: seismic signature survey |
| topic | Science & Technology Physical Sciences Astronomy & Astrophysics fireball impact seismic observation sensitivity METEORITE FALL PEEKSKILL METEORITE SEPTEMBER 15 DYNAMICS BOLIDE ORBIT NEUSCHWANSTEIN EVENT MASS |
| url | http://dx.doi.org/10.1017/pasa.2021.11 http://dx.doi.org/10.1017/pasa.2021.11 http://dx.doi.org/10.1017/pasa.2021.11 http://dx.doi.org/10.1017/pasa.2021.11 http://dx.doi.org/10.1017/pasa.2021.11 http://hdl.handle.net/20.500.11937/90195 |