Long‐term explosive degassing and debris flow activity at West Mata submarine volcano
| العنوان: | Long‐term explosive degassing and debris flow activity at West Mata submarine volcano |
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| المؤلفون: | Tai-Kwan Lau, Robert W. Embley, William W. Chadwick, Haruyoshi Matsumoto, Robert P. Dziak, Jacqueline Caplan-Auerbach, Sharon L. Walker, Edward T. Baker, Susan G. Merle, DelWayne R. Bohnenstiehl |
| المصدر: | Geophysical Research Letters. 42:1480-1487 |
| بيانات النشر: | American Geophysical Union (AGU), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | geography, geography.geographical_feature_category, Hydrophone, Submarine, Debris, Debris flow, Geophysics, Effusive eruption, Volcano, Magma, General Earth and Planetary Sciences, Submarine volcano, Geology, Seismology |
| الوصف: | West Mata is a 1200 m deep submarine volcano where explosive boninite eruptions were observed in 2009. The acoustic signatures from the volcano's summit eruptive vents Hades and Prometheus were recorded with an in situ (~25 m range) hydrophone during ROV dives in May 2009 and with local (~5 km range) moored hydrophones between December 2009 and August 2011. The sensors recorded low frequency (1–40 Hz), short duration explosions consistent with magma bubble bursts from Hades, and broadband, 1–5 min duration signals associated with episodes of fragmentation degassing from Prometheus. Long-term eruptive degassing signals, recorded through May 2010, preceded a several month period of declining activity. Degassing episodes were not recorded acoustically after early 2011, although quieter effusive eruption activity may have continued. Synchronous optical measurements of turbidity made between December 2009 and April 2010 indicate that turbidity maxima resulted from occasional south flank slope failures triggered by the collapse of accumulated debris during eruption intervals. |
| تدمد: | 1944-8007 0094-8276 |
| DOI: | 10.1002/2014gl062603 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2bc820ff0e8452970539b5481fe7805a https://doi.org/10.1002/2014gl062603 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........2bc820ff0e8452970539b5481fe7805a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448007 00948276 |
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| DOI: | 10.1002/2014gl062603 |