| Even in areas where foreshocks are fairly common, there is no way of distinguishing a foreshock from an independent earthquake. |
| It was later discovered, though, that a rare series of small tremors, called foreshocks, occurred before the large quake hit the city. |
| Most people think of foreshocks as the small earthquakes that trigger a big quake. |
| The short-term prediction was possible primarily on a series of foreshocks that began four days prior to the main shock. |
| Prices cannot go much higher without us beginning to feel the foreshocks of a peak oil catastrophe. |
| Scientists are still studying foreshocks carefully to see if they can alert us to a possible bigger earthquake. |
