| 1. | The central vent emitted lava frequently, which cascaded down a steep slope.
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| 2. | They were characterized mainly by a central vent eruption, followed by an explosive eruption.
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| 3. | Another eruption from the central vent occurred on March 21, 1962 and lasted until early April.
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| 4. | The middle Pleistocene featured a change of activity away from fissure eruptions to central vent eruptions.
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| 5. | The central vent will usually erupt to about.
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| 6. | Cut a central vent in the top crust.
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| 7. | Most of the volcanoes have a main, central vent from which the most recent eruptions have occurred.
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| 8. | Cut a central vent in top crust.
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| 9. | It is mainly composed of } } thick felsic lava flows that were erupted from a central vent.
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| 10. | Exactly one year later, a VEI 1 eruption occurred from the central vent of Cerro Negro on March 21, 1963.
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