1 00:00:00,280 --> 00:00:02,000 Speaker 1: The Day in History Class. It's a production of I 2 00:00:02,080 --> 00:00:06,120 Speaker 1: Heart Radio. Hello everyone, I'm Eves and welcome to this 3 00:00:06,200 --> 00:00:08,960 Speaker 1: Day in History Class, a podcast for people who really 4 00:00:08,960 --> 00:00:11,639 Speaker 1: take to heart the saying you learn something new every day. 5 00:00:13,400 --> 00:00:23,800 Speaker 1: Today It's made. The day was made twenty second, nineteen fifteen, 6 00:00:24,880 --> 00:00:29,320 Speaker 1: an explosive eruption of Lassen Peak in northern California devastated 7 00:00:29,360 --> 00:00:33,040 Speaker 1: the areas around the volcano. Lastin Peak is an active 8 00:00:33,120 --> 00:00:36,239 Speaker 1: volcano at the southern end of the Cascade Range. It 9 00:00:36,320 --> 00:00:39,520 Speaker 1: stands at about ten thousand feet or three thousand meters tall. 10 00:00:40,040 --> 00:00:42,880 Speaker 1: It was formed from a series of volcanic eruptions about 11 00:00:42,920 --> 00:00:46,120 Speaker 1: twenty seven thousand years ago, and it's a lava dome, 12 00:00:46,240 --> 00:00:48,880 Speaker 1: which are formed when viscus lava is extruded from a 13 00:00:48,960 --> 00:00:53,360 Speaker 1: volcanic vent. The areas around Lastin Peak have historically been 14 00:00:53,360 --> 00:00:56,840 Speaker 1: meeting points for Native Americans, but more white people moved 15 00:00:56,880 --> 00:01:00,680 Speaker 1: to the area after the California Gold Rush. In nineteen 16 00:01:00,680 --> 00:01:04,319 Speaker 1: o seven, U S. President Theodore Roosevelt proclaimed Lastin Peak 17 00:01:04,400 --> 00:01:07,240 Speaker 1: a National monument, but some people were hoping for the 18 00:01:07,280 --> 00:01:11,760 Speaker 1: creation of a national park around Lastin Peak. In nineteen eleven, 19 00:01:11,920 --> 00:01:15,720 Speaker 1: President William H. Taft recommended the establishment of a Bureau 20 00:01:15,800 --> 00:01:19,600 Speaker 1: of National Parks, and in nineteen twelve, Congress began holding 21 00:01:19,640 --> 00:01:23,920 Speaker 1: hearings on the creation of a National Park Service. California 22 00:01:23,959 --> 00:01:27,360 Speaker 1: Congressman John E. Raker supported the creation of a National 23 00:01:27,440 --> 00:01:31,000 Speaker 1: Park Service and introduced a bill to establish a Peter 24 00:01:31,120 --> 00:01:36,120 Speaker 1: Lassen National Park, named after a Danish American blacksmith and prospector, 25 00:01:36,640 --> 00:01:39,959 Speaker 1: but the bill failed, and later bills also failed in 26 00:01:40,040 --> 00:01:45,240 Speaker 1: nineteen thirteen and nineteen fourteen. But on May thirtieth, nineteen fourteen, 27 00:01:45,760 --> 00:01:49,680 Speaker 1: eruptive activity began at Lastin Peak. A small free attic 28 00:01:49,920 --> 00:01:52,960 Speaker 1: eruption took place at event near its summit. A free 29 00:01:53,000 --> 00:01:55,440 Speaker 1: atic eruption is one that is caused by the heating 30 00:01:55,480 --> 00:01:59,240 Speaker 1: and expansion of ground water. Over the next year, more 31 00:01:59,280 --> 00:02:03,320 Speaker 1: than one and fifty explosions occurred. This was the beginning 32 00:02:03,400 --> 00:02:07,120 Speaker 1: of an eruptive period for Lastin Peak, but in mid 33 00:02:07,200 --> 00:02:11,239 Speaker 1: May of nineteen fifteen, the eruptions changed. Lava appeared in 34 00:02:11,280 --> 00:02:14,560 Speaker 1: the summit crater and flowed over the crater's walls. On 35 00:02:14,680 --> 00:02:18,080 Speaker 1: May nineteen, a stream of molten lava sent an avalanche 36 00:02:18,160 --> 00:02:22,000 Speaker 1: of hot rock into snow, causing a lahar or mud flow, 37 00:02:22,800 --> 00:02:25,680 Speaker 1: and at around four pm on May twenty two, there 38 00:02:25,720 --> 00:02:29,959 Speaker 1: was an explosive eruption at Lastin Peak. The blast sent rock, 39 00:02:30,000 --> 00:02:33,440 Speaker 1: fragments and pummice high above the volcano. A column of 40 00:02:33,520 --> 00:02:36,760 Speaker 1: volcanic gas and ash rose more than thirty thousand feet 41 00:02:36,800 --> 00:02:40,680 Speaker 1: into the air. A pyroclastic flow made of hot ash, pummice, 42 00:02:40,840 --> 00:02:44,160 Speaker 1: rock fragments, and gas made its way down the side 43 00:02:44,160 --> 00:02:47,919 Speaker 1: of the volcano. That flow melted snow and turned into 44 00:02:47,960 --> 00:02:51,240 Speaker 1: a lahar that flooded the lower Hat Creek Valley. There 45 00:02:51,280 --> 00:02:54,240 Speaker 1: were other smaller mud flows on all sides of Lastin Peak. 46 00:02:55,120 --> 00:02:58,600 Speaker 1: The eruption also deposited a layer of pummice and ash 47 00:02:58,680 --> 00:03:01,400 Speaker 1: that reached as far as to twenty five miles northeast 48 00:03:01,400 --> 00:03:04,680 Speaker 1: of the peak, and volcanic ash raged as far away 49 00:03:04,720 --> 00:03:07,959 Speaker 1: as Elko, Nevada, which was two d and eighty miles 50 00:03:08,000 --> 00:03:12,400 Speaker 1: to the east. The eruption was caught on camera, notably 51 00:03:12,480 --> 00:03:15,800 Speaker 1: by Benjamin F. Loomis. It was the most powerful in 52 00:03:15,840 --> 00:03:19,000 Speaker 1: a series of eruptions that occurred in the Cascades between 53 00:03:19,040 --> 00:03:23,760 Speaker 1: nineteen fourteen and nineteen seventeen, especially strong steam eruptions for 54 00:03:24,000 --> 00:03:27,440 Speaker 1: the Northern Crater on the volcano summit and steam eruptions 55 00:03:27,480 --> 00:03:33,320 Speaker 1: continued until in December of nineteen fifteen, Raker introduced another 56 00:03:33,360 --> 00:03:36,920 Speaker 1: bill to establish a national park, and this time it passed. 57 00:03:37,440 --> 00:03:40,960 Speaker 1: Last and Volcanic National Park was established in nineteen sixteen. 58 00:03:41,760 --> 00:03:46,040 Speaker 1: Last and a Peak is still an active volcano. I'm 59 00:03:46,080 --> 00:03:48,840 Speaker 1: Eve Jefcote and hopefully you know a little more about 60 00:03:48,880 --> 00:03:51,880 Speaker 1: history today than you did yesterday. And if you have 61 00:03:52,040 --> 00:03:55,040 Speaker 1: any comments, star suggestions you'd like to send us, you 62 00:03:55,080 --> 00:03:57,640 Speaker 1: can do so at this day and I Heard media 63 00:03:57,800 --> 00:04:00,240 Speaker 1: dot com. You can also hit a stub on social 64 00:04:00,320 --> 00:04:04,760 Speaker 1: media where at T T I h C podcast. Thanks 65 00:04:04,880 --> 00:04:14,800 Speaker 1: so much for listening and we'll see you tomorrow. For 66 00:04:14,880 --> 00:04:17,600 Speaker 1: more podcasts from I Heart Radio, visit the iHeart Radio app, 67 00:04:17,640 --> 00:04:20,240 Speaker 1: Apple Podcasts, or wherever you listen to your favorite shows.