Quasi-synchronous multi-parameter anomalies associated with the 2010–2011 New Zealand earthquake sequence
| Title: | Quasi-synchronous multi-parameter anomalies associated with the 2010–2011 New Zealand earthquake sequence |
|---|---|
| Authors: | K. Qin, L. X. Wu, A. De Santis, J. Meng, W. Y. Ma, G. Cianchini |
| Source: | Natural Hazards and Earth System Sciences, Vol 12, Iss 4, Pp 1059-1072 (2012) |
| Publisher Information: | Copernicus Publications, 2012. |
| Publication Year: | 2012 |
| Collection: | LCC:Environmental technology. Sanitary engineering LCC:Geography. Anthropology. Recreation LCC:Environmental sciences LCC:Geology |
| Subject Terms: | Environmental technology. Sanitary engineering, TD1-1066, Geography. Anthropology. Recreation, Environmental sciences, GE1-350, Geology, QE1-996.5 |
| More Details: | Positive thermal anomalies about one month before the 3 September 2010 Mw = 7.1 New Zealand earthquake and "coincidental" quasi-synchronous fluctuations of GPS displacement were reported. Whether there were similar phenomena associated with the aftershocks? To answer it, the following was investigated: multiple parameters including surface and near-surface air temperature, surface latent heat flux, GPS displacement and soil moisture, using a long-term statistical analysis method. We found that local thermal and deformation anomalies appeared quasi-synchronously in three particular tectonic zones, not only about one month before the mainshock, but also tens of days before the 21 February 2011 Mw = 6.3 aftershock, and that the time series of soil moisture on the epicenter pixel had obvious peaks on most of the anomalous days. Based on local tectonic geology, hydrology and meteorology, the particular lithosphere-coversphere-atmosphere coupling mode is interpreted and four mechanisms (magmatic-hydrothermal fluids upwelling, soil moisture increasing, underground pore gases leaking, and positive holes activating and recombining) are discussed. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1561-8633 1684-9981 |
| Relation: | http://www.nat-hazards-earth-syst-sci.net/12/1059/2012/nhess-12-1059-2012.pdf; https://doaj.org/toc/1561-8633; https://doaj.org/toc/1684-9981 |
| DOI: | 10.5194/nhess-12-1059-2012 |
| Access URL: | https://doaj.org/article/c5c1c28eab7c4102b913230b5217f856 |
| Accession Number: | edsdoj.5c1c28eab7c4102b913230b5217f856 |
| Database: | Directory of Open Access Journals |
| ISSN: | 15618633 16849981 |
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| DOI: | 10.5194/nhess-12-1059-2012 |
| Published in: | Natural Hazards and Earth System Sciences |
| Language: | English |