They mostly occur within 1-2 fault lengths of the mainshock. For the largest earthquakes, this is a long distance; it is thought that the 1906 San Francisco earthquake triggered events in southern California, western Nevada, southern central Oregon, and western Arizona, all within 2 days of the mainshock.hey mostly occur within 1-2 fault lengths of the mainshock. For the largest earthquakes, this is a long distance; it is thought that the 1906 San Francisco earthquake triggered events in southern California, western Nevada, southern central Oregon, and western Arizona, all within 2 days of the mainshock.
Nevertheless, you can remove tartar from the teeth at home using certain home remedies. 1  Use a soft bristled toothbrush to clean your teeth, gently, yet effectively. 2  Mix salt and baking soda and brush your teeth to remove tartar from your teeth successfully. 3  Your intake of vitamin C determines your oral health status.
Your best bet is not to let tartar form on your teeth. Here's how: 1  Brush regularly, twice a day for 2 minutes a time. 2  A 30-second scrub twice a day wonât remove plaque or prevent tartar. 3  Use a brush with soft bristles that is small enough to fit into your mouth.our best bet is not to let tartar form on your teeth. Here's how: 1  Brush regularly, twice a day for 2 minutes a time. 2  A 30-second scrub twice a day wonât remove plaque or prevent tartar. 3  Use a brush with soft bristles that is small enough to fit into your mouth.