| 1. | During the 19th and 20th century, small phreatic eruptions occurred.
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| 2. | Occasionally, phreatic eruptions ( groundwater steam-generated eruptions ) occur.
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| 3. | The only unambiguous historical eruption was a small phreatic eruption in 1880.
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| 4. | Officials from the Ministry of Mines and Energy reported a phreatic eruption.
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| 5. | Mild phreatic eruptions of Tacan?took place in historical times.
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| 6. | On May 16 and 17, the mountain stopped its phreatic eruptions completely.
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| 7. | The lakes have been a source of minor phreatic eruptions in historical time.
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| 8. | Phreatic eruptions produced local tephras during the early Holocene.
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| 9. | See Phreatic eruption for a discussion of the role of water in volcanism.
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| 10. | There are several recorded eruptions of this basaltic-VEI 2, phreatic eruption.
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