This rift valley was formed when the Earth's crust moved downward about a kilometre between two major fault zones known as the Mattawa and Petawawa faults. [2] The Ottawa …

Esri, HERE, Garmin, FAO, NOAA, AAFC, NRCan | United States Geologic Service (USGS) |

The valley of the Ottawa - Bonnechere Graben is shown by the band of green-coloured land that runs from North Bay area (#5), along the Ottawa River to the Ottawa area (#1). The dashed …

Most earthquakes cluster along or between the mapped Iapetan faults (also called St. Lawrence paleo-rift faults). CSZ earthquakes occur in the Canadian Shield, between the surface and 30 …

Ottawa graben is bounded by steeply dipping, EW-to WNW-striking faults (Fig. 1). The association of major faults bounding, and within, the graben, along with the presence of alkaline igneous...

The Petawawa and the Mattawa Faults are two of many normal faults that define the Ottawa Valley. The Ottawa Rift Valley, also referred to as the Ottawa-Bonnechere Graben initiated …

One of the most prominent faults in Ontario is the Western Quebec Seismic Zone, which runs along the Ottawa River Valley and extends into Eastern Ontario. This fault has been …

2005年5月1日 · Recent seismicity within the Ottawa graben may involve reactivations of faults belonging to the families identified in this paper. (a) Location map of the study area. (b) …

2006年8月13日 · The Ottawa Bonnechere Graben. (Base map courtesy of Wikipedia — see notes) 1. Oiseau Rock; 2. Egg Rock; 3. Shrine Hill, Wilno; 4. Foymount; 5. Clontarf; 6. Barron …

2023年2月15日 · In intraplate areas where regional tectonic strain is accommodated by the reactivation of pre-existing structures, the level of seismic hazard associated with faults may …