Confidence votes 13.1K. 1 US cup = 48 US teaspoons. A teaspoon is one-sixth of a fluid ounce. In other words, there are six teaspoons in one ounce, and there are eight ounces in a cup. 6 times 8 equals 48. 1 cup = 48 teaspoons.
Graph showing the annual average number of worldwide earthquakes of each magnitude calculated over the last 20 years. This shows how earthquake numbers decrease as magnitude increases. For example: there are roughly ten times as many earthquakes of magnitude 6 than magnitude 7.CLICK TO ENLARGE.n average there are about 15 earthquakes every year with a magnitude of 7 or greater. As with any almost random phenomena, the number of earthquakes each year varies slightly from this average, but in general, there are no dramatic variations.
Strongest earthquakes by magnitude[edit] A pie chart comparing the seismic moment release of the three largest earthquakes for the hundred-year period from 1906 to 2005 with that for all earthquakes of magnitudes <6, 6 to 7, 7 to 8 and >8 for the same period. Earthquakes of magnitude 8.0 and greater since 1900. The apparent 3D volumes of the bubbles are linearly proportional to their respective fatalities. Listed below are all known earthquakes measured or estimated to have a magnitude of 8.5 or above on the moment magnitude or Richter magnitude scale. This list is biased towards recent years due to development and widespread deployment of seismometers.