1.   Even with a cadre of volcano experts, there was no consensus as to what would happen when.

2.   The air blast was so severe that a volcano expert from Washington state visited Yosemite to survey the damage.

3.   Volcano expert Jorge Barquero told the Tico Times, a local English-language paper, last month that the resort should never have been built.

4.   A group of American volcano experts arrived in Nicaragua on Thursday to assess the situation.

5.   A group of American volcano experts arrived in Nicaragua Thursday to assess the situation.

6.   A group of American volcano experts arrived in Nicaragua Thursday to assess the danger.

7.   Haroun Tazieff, an internationally known volcano expert, dies in Paris.

8.   The meteorological agency sent three volcano experts to the scene and plans to set up more quake-monitoring devices around the mountain, national broadcaster NHK said.

9.   Volcano expert Durieux praised Wafula, who had predicted the eruption in an e-mail two days before it happened.

10.   Volcano expert William Ambeh, who is in charge of the observatory, warned that more pyroclastic flows were expected and with greater frequency.