11.   The canyon is cracked in some places, Ward said, and even a small earthquake near a crack could set off a landslide.

12.   The collapse shook the ground with a force like a small earthquake.

13.   Understanding the mechanisms that lead to small earthquakes may also help scientists better understand the larger ones, he said.

14.   Well-made concrete buildings do particularly well in small earthquakes.

15.   While a small earthquake might exhibit slow slippage over an area a few yards wide, a larger earthquake could involve an area several miles wide.

16.   A small earthquake rattled Baja California early Wednesday, but there were no reports of injuries or major damage.

17.   A small earthquake rattled southern Bulgaria Tuesday, the official BTA news agency said.

18.   A small earthquake rattled the capital Sofia on Thursday.

19.   A small earthquake rattled the Pacific coast of southern Oaxaca state Monday, causing no reported injuries or damage.

20.   A small earthquake shook part of southwestern Austria early Friday, but caused no injuries or damage, an earthquake institute said Tuesday.