Lava flows are the least hazardous of all processes in volcanic eruptions. How far a lava flow travels depends on the flows temperature, silica content, extrusion rate, and slope of the land. A cold lava flow will not travel far and neither will one that has a high silica content. Such a flow would have a high viscosity<span> (a high resistance to flow). A basalt flow like those in Hawai'i have low silica contents and low viscosities so they can flow long distances. Such a flow can move as far away as 4 km from its source and have a thickness of 10 m (Bryant, 1991). These flows can move at rates of several kilometers per hour (Scott, 1989). </span><span>More silica-rich flows can move as far away as 1.3 km from their sources and have thicknesses of 100 m (Bryant, 1991). These flows can move at rates of a few to hundreds of meters per hour (Scott, 1989). If a lava flow is channelized or travels underground in a lava tube then the distance it travels is greatly extended.</span>
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Earthquake-</span><span>a. measured on the Richter scale
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Volcano-</span>b. lava comes out d. forms a mountain<span>
Both-c</span><span>. natural hazard
d. caused by subduction</span><span>e. occurs underwater
f. measured using a seismograph</span>
Answer:
vHey have you found the asnwer
Explanation:
Answer:
The hawaiian island is unique island located in chain of most active volcanoes on earth, the easternmost Big island consists of 5 major volcanoes in the pacific ocean, which remain active as the rest of the tail islands.
Explanation:
The five major islands are Kohala, Mauna Kea, Kailua, Mauna loa, Hualalai there being active and one extinct and one dominant. Because Of these volcanic eruptions the whole island is the main administrative unit and encompasses the entire Hawaiian country i.e 62.7 % of states also this consists of submarine volcanoes and massive ridges.
