{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "SEISMIC ACTIVITY IN THE SOUTHEASTERNMOST HAWAIIAN ISLAND - HAWAI'I" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "According to the Wikipedia, the island of Hawaiʻi was built from five separated shield volcanoes that erupted somewhat sequentially, one overlapping the other. These are (from oldest to youngest):\n", "\n", "-
Kohala – extinct.
\n", " \n", "-Mauna Kea – dormant, he highest volcano on the Island of Hawai‘i, erupted most recently between about 6,000 and 4,500 years ago from at least seven separate summit-area vents, producing lava flows and cinder cones. Glaciers covered parts of the volcano's summit area during the recent ice ages, the only Hawaiian volcano known to have been glaciated.
\n", " \n", "-Hualālai – dormant, the third most active volcano on the Island of Hawai‘i, has erupted three times in the past 1,000 years and eight times in the past 1,500 years. The most recent eruption in 1801 generated a lava flow that reached the ocean and now underlies the Kona International Airport. Lava flows less than 5,000 years old cover about 80 percent of the volcano.
\n", " \n", "-Mauna Loa – active, the largest volcano on Earth, has erupted 33 times since 1843. The most recent eruption in 1984 lasted 22 days and produced lava flows which reached to within about 7.2 km (4.5 miles) of Hilo, the largest population center on the Island of Hawai‘i. Lava flows less than 4,000 years old cover about 90 percent of the volcano.
\n", " \n", "-Kīlauea – active: the youngest and most active volcano on the Island of Hawai‘i, has erupted almost continuously since 1983 to 2018 at Pu‘u ‘Ō‘ō and other vents along the volcano's East Rift Zone. From 2008 to 2018, there was a lava lake within Halema‘uma‘u Crater at the volcano's summit. About 90 percent of the volcano is covered with lava flows less than 1,100 years in age.
\n", " \n", "\n", "Neal, C. A., Brantley, S. R., Antolik, L., Babb, J. L., Burgess, M., Calles, K., … Damby, D. (2018). \n", "The 2018 rift eruption and summit collapse of Kīlauea Volcano. Science, 363(6425), 367–374. \n", "doi: 10.1126/science.aav7046
\n", " \n", "Wikipedia contributors. (2020, September 15). Hawaii (island). In Wikipedia, The Free Encyclopedia. Retrieved 12:52, September 23, 2020, from https://en.wikipedia.org/w/index.php?title=Hawaii_(island)&oldid=978589420
\n", "\n", "The events USGS pages\n", "\n", "https://earthquake.usgs.gov/earthquakes/eventpage/hv70116556/executive,\n", "https://earthquake.usgs.gov/earthquakes/eventpage/hv70863117/executive,\n", "https://earthquake.usgs.gov/earthquakes/eventpage/hv71365812/executive.\n", "\n", "More useful links\n", "\n", "https://www.usgs.gov/volcanoes/mauna-loa,\n", "https://volcanoes.usgs.gov/volcanoes/kilauea/status.html,\n", "https://www.usgs.gov/observatories/hawaiian-volcano-observatory,\n", "https://www.usgs.gov/observatories/hawaiian-volcano-observatory/active-volcanoes-hawaii.\n", "\n" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [] } ], "metadata": { "kernelspec": { "display_name": "Python [conda env:obspy] *", "language": "python", "name": "conda-env-obspy-py" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.7.8" } }, "nbformat": 4, "nbformat_minor": 4 }