| Titre | Characterizing an "uncharacteristic" ETS event in northern Cascadia |
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| Auteur | Wang, K ; Dragert,
H; Kao, H; Roeloffs, E |
| Source | Geophysical Research Letters vol. 35, L15303, 2008, 5p., https://doi.org/10.1029/2008GL034415 |
| Image |  |
| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20080079 |
| Éditeur | Wiley-Blackwell |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1029/2008GL034415 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Province | Colombie-Britannique |
| SNRC | 92B; 92C; 92E; 92F; 92G |
| Région | Île de Vancouver; Vancouver |
| Lat/Long OENS | -127.0000 -122.5000 50.0000 48.0000 |
| Sujets | interpretations sismiques; levés sismiques; zones sismiques; éléments tectoniques; interprétations tectoniques; mouvements des plaques; frontières de plaques; zones de subduction |
| Illustrations | croquis cartographiques |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 08 06 |
| Résumé | (disponible en anglais seulement)
GPS and borehole strainmeter data allowed the detection and model characterization of a slow slip event in northern Cascadia in November 2006 accompanying a
brief episode of seismic tremor. The event is much smaller in area and duration than other well-known ETS events in northern Cascadia but is strikingly similar to typical ETS events at the Nankai subduction zone. The 30-45 km depth range and the 2-3
cm slip magnitude as seen in this event appear to be common to most ETS events, regardless of their sizes. We infer that the Nankai-type small ETS events must be abundant at Cascadia and that ETS events at the two subduction zones are governed by a
similar physical process. |
| GEOSCAN ID | 225137 |
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