问答题【2018年真题】（2018下）New drone footage gives a glimpse of the damage that Hawaii"s Big Island sustained in the wake of volcanic explosions in recent days. Smoke can be seen billowing off the lava as it creeps down roads and through wooded areas toward homes. Fires are visible with terrifying streams of brightness breaking through the surrounding areas of black. After a day of relative calm, Kilauea（基拉韦厄火山） roared back in full force on Sunday, spewing lava 300 feet in the air, encroaching on a half mile of new ground and bringing the total number of destroyed structures to 35. There have been 1,800 residents evacuated from their neighborhoods where cracks have been opening and spilling lava. In evacuated areas with relatively low sulfur dioxide levels, residents were allowed to return home for a few hours to collect belongings on Sunday and Monday. Officials said those residents - a little more than half of the evacuees -- were allowed to return briefly, and they would continue to allow residents in if it could be done safely.
 "Things got pretty active," an official said at a Saturday press conference. "The eight volcanoes were pretty active, to the point where lava was spewing and the flow started spreading so we got additional damage out there. I"m not sure what the count is, but we thought it was just continuing to go. Fortunately, seismicity has laid down and the volcanoes have gone quiet now." But officials had cautioned that while the lava flow was quiet, it wouldn"t be for long. "More volcanoes could open up, the existing ones could get active again. There"s a lot of lava under the ground so eventually it"s going to come up. The island was also rocked by a 6.9-magnitude earthquake on Friday, which caused landslides near the coast, but minimal structural damage. The United States Geological Survey (USGS) said Sunday the island had experienced more than 500 earthquakes - 13 with a magnitude greater than 4.0 -- in the 24 hours following the 6.9-magnitude quake. But, the concern for residents continues to be the lava and gas emitted from volcanoes. "The lava is definitely destroying people"s homes -- we don"t have an exact count - but it is a devastating situation.” Hawaii County head said Saturday. "There"s no way we could"ve predicted this."