On This Day in History: The Lassen Peak Eruption of 1915

It was the late-afternoon of May 22, 1915 when Lassen Peak exploded in a powerful eruption that blasted rock fragments and pumice high into the air and sent a column of gas and volcanic ash 30,000 feet into the air.

Lassen first showed signs of coming to life on May 30th, 1914 with steam explosions near the summit. These continued for almost a year, more than 180 releases in all, expanding the summit crater by 1,000 feet. On the evening of May 15th, 1915, the first lava was sighted spilling down the flanks of the volcano and filling in the summit crater. A few days later on May 19th another explosion created a new summit crater. There was still 30 feet of snow at the summit, and the hot rocks created a half-mile-wide avalanche that spilled down the side of the volcano and into Hat Creek four miles away.

View of the Lassen Peak eruption from Red Bluff

“From the crater and crevasse were coming puffs of steam and ashes,” reported park ranger Harvey Abbey. “Noises coming from the crater were heard that sounded like something dropping down in the bottom of the crater.Along the sides of the crater were small, round holes, where the steam was gushing out.”

View of the Lassen Peak eruption from Red Bluff

As the snow in the avalanche melted it mixed with volcanic materials to form a mudflow called a lahar. This then raced down Lost Creek canyon for another seven miles. Hat Creek Valley was flooded with muddy water on May 20th, which damaged several ranches in the Old Station area. Floodwaters headed down Hat Creek to the Pit River, over 30 miles, and witnesses claimed the muddy waters killed many fish. Of course, there were salmon and steelhead in all these waters back then. More lava spilled from the summit on the 19th and 20th reaching down the mountainous flank another 1,000 feet.

The next powerful explosion happened around 4:00pm on May 22nd blowing rocks high into the air above the summit. Shortly thereafter a column of volcanic ash and gas rose some 30,000 feet above the mountain, which was visible from 150 miles away. A pyroclastic flow, an angry burst of hot gas and rock blasted down Lassen’s flank at up to 450 miles per hour and 1,000 degrees clearing three square miles of virtually everything in its path.

Another mudflow (lahar) was generated by the pyroclastic flow that again blew 15 miles down Lost Creek and releasing another blast of muddy water down Hat Creek. Volcanic ash flowed down the mountain and fine volcanic ash blew in a northeasterly direction as far away as Elko, Nevada. Smaller eruptions continued between 1914 and 1917, and steam continued to leak from the calming volcano well into the 1920s.

Following the eruption of Lassen Peak from 1914 to 1917, the volcano went from looking like this:

To looking like this:

Today the science of volcanic eruption prediction is far more advanced than it was in the dawn of the 1900s, but it is far from foolproof either. Most volcanoes “announce” their pending activity as far as years in advance to only a matter of days. Fortunately the prevailing winds typically blow from West to East in NorCal, so volcanic ash from another eruption would most likely be blown away from major population centers along the I-5 corridor.

This, however, is no reason to get too comfortable. There are too many ways future eruptions could cause catastrophic problems for North State residents and visitors, not to mention traffic on I-5 and even airline routes worldwide.

Active NorCal

Telling the Stories of Northern California

157 Comments

  1. I’m not sure where you are getting your info, but good topic. I needs to spend some time learning more or understanding more. Thanks for fantastic information I was looking for this information for my mission.

  2. After exploring a few of the blog articles on your website, I really like your way of blogging. I book marked it to my bookmark site list and will be checking back soon. Please check out my web site as well and let me know how you feel.

  3. Hi there this is kinda of off topic but I was wondering if blogs use WYSIWYG editors or if you have to manually code with HTML. I’m starting a blog soon but have no coding experience so I wanted to get advice from someone with experience. Any help would be greatly appreciated!

  4. My coder is trying to persuade me to move to .net from PHP. I have always disliked the idea because of the expenses. But he’s tryiong none the less. I’ve been using Movable-type on a variety of websites for about a year and am worried about switching to another platform. I have heard excellent things about blogengine.net. Is there a way I can transfer all my wordpress content into it? Any kind of help would be really appreciated!

  5. Does your site have a contact page? I’m having problems locating it but, I’d like to send you an e-mail. I’ve got some creative ideas for your blog you might be interested in hearing. Either way, great site and I look forward to seeing it develop over time.

  6. It’s really a cool and helpful piece of information. I’m satisfied that you simply shared this helpful info with us. Please stay us informed like this. Thank you for sharing.

  7. What i do not realize is if truth be told how you’re not really a lot more smartly-liked than you may be right now. You are so intelligent. You understand therefore significantly when it comes to this topic, produced me in my opinion believe it from so many various angles. Its like men and women don’t seem to be fascinated until it’s something to accomplish with Woman gaga! Your own stuffs nice. Always take care of it up!

  8. Howdy! I just want to give you a huge thumbs up for the great info you’ve got here on this post. I’ll be coming back to your site for more soon.

  9. Hey just wanted to give you a quick heads up and let you know a few of the images aren’t loading correctly. I’m not sure why but I think its a linking issue. I’ve tried it in two different browsers and both show the same results.

  10. Someone necessarily help to make seriously articles I might state. This is the first time I frequented your web page and thus far? I amazed with the research you made to create this actual post incredible. Fantastic task!

  11. Wonderful beat ! I wish to apprentice while you amend your site, how can i subscribe for a blog web site? The account aided me a acceptable deal. I had been tiny bit acquainted of this your broadcast provided bright clear concept

  12. fantastic publish, very informative. I’m wondering why the other experts of this sector do not understand this. You should continue your writing. I am sure, you have a huge readers’ base already!

  13. I like the valuable information you supply in your articles. I will bookmark your weblog and test again here frequently. I am somewhat certain I will be informed a lot of new stuff right here! Good luck for the following!

  14. Do you mind if I quote a couple of your posts as long as I provide credit and sources back to your webpage? My blog site is in the very same area of interest as yours and my visitors would certainly benefit from a lot of the information you present here. Please let me know if this okay with you. Cheers!

  15. continuously i used to read smaller articles which also clear their motive, and that is also happening with this article which I am reading here.

  16. Hello! This is kind of off topic but I need some help from an established blog. Is it very difficult to set up your own blog? I’m not very techincal but I can figure things out pretty fast. I’m thinking about creating my own but I’m not sure where to start. Do you have any points or suggestions? With thanks

  17. Its like you read my mind! You seem to know so much approximately this, like you wrote the book in it or something. I think that you could do with some % to pressure the message house a bit, however other than that, this is wonderful blog. An excellent read. I’ll definitely be back.

  18. Hi there! Quick question that’s completely off topic. Do you know how to make your site mobile friendly? My website looks weird when viewing from my iphone. I’m trying to find a theme or plugin that might be able to correct this problem. If you have any suggestions, please share. Thank you!

  19. Yesterday, while I was at work, my sister stole my iphone and tested to see if it can survive a thirty foot drop, just so she can be a youtube sensation. My iPad is now broken and she has 83 views. I know this is entirely off topic but I had to share it with someone!

  20. Oh my goodness! Awesome article dude! Thanks, However I am experiencing problems with your RSS. I don’t know why I am unable to subscribe to it. Is there anyone else getting identical RSS problems? Anyone who knows the solution will you kindly respond? Thanx!!

  21. Hey There. I found your blog the use of msn. This is an extremely well written article. I will be sure to bookmark it and come back to read more of your useful information. Thank you for the post. I will definitely comeback.

  22. I will right away clutch your rss as I can not find your email subscription link or newsletter service. Do you have any? Please permit me recognize so that I may just subscribe. Thanks.

  23. Tremendous things here. I’m very satisfied to peer your article. Thank you so much and I’m taking a look forward to touch you. Will you please drop me a mail?

  24. Link exchange is nothing else except it is only placing the other person’s weblog link on your page at proper place and other person will also do same for you.

  25. What’s Happening i’m new to this, I stumbled upon this I have found It positively helpful and it has helped me out loads. I hope to give a contribution & aid other users like its helped me. Good job.

  26. Wonderful goods from you, man. I’ve remember your stuff prior to and you’re simply too magnificent. I really like what you’ve got here, really like what you’re stating and the way during which you assert it. You make it entertaining and you still take care of to stay it smart. I cant wait to read far more from you. This is actually a great site.

  27. When I originally commented I seem to have clicked the -Notify me when new comments are added- checkbox and now every time a comment is added I recieve four emails with the same comment. Perhaps there is a way you can remove me from that service? Thanks!

  28. you are actually a just right webmaster. The web site loading velocity is incredible. It sort of feels that you are doing any unique trick. Also, The contents are masterpiece. you have performed a fantastic activity in this topic!

  29. Wow that was odd. I just wrote an really long comment but after I clicked submit my comment didn’t show up. Grrrr… well I’m not writing all that over again. Regardless, just wanted to say fantastic blog!

  30. Hello! I’ve been following your weblog for a while now and finally got the bravery to go ahead and give you a shout out from Houston Tx! Just wanted to mention keep up the fantastic job!

  31. Hi there, I found your web site by the use of Google at the same time as searching for a similar topic, your site got here up, it seems good. I have bookmarked it in my google bookmarks.

  32. Thanks for your personal marvelous posting! I quite enjoyed reading it, you could be a great author. I will ensure that I bookmark your blog and definitely will come back from now on. I want to encourage one to continue your great writing, have a nice holiday weekend!

  33. What’s Taking place i’m new to this, I stumbled upon this I have found It positively helpful and it has helped me out loads. I am hoping to give a contribution & assist other users like its helped me. Good job.

  34. Pretty great post. I simply stumbled upon your blog and wanted to mention that I have really enjoyed browsing your blog posts. In any case I’ll be subscribing for your feed and I am hoping you write again soon!

  35. Write more, thats all I have to say. Literally, it seems as though you relied on the video to make your point. You clearly know what youre talking about, why waste your intelligence on just posting videos to your site when you could be giving us something enlightening to read?

  36. Nice post. I used to be checking continuously this blog and I am inspired! Very useful information particularly the ultimate phase 🙂 I care for such info a lot. I used to be seeking this particular info for a long timelong time. Thank you and good luck.

  37. Hi there, i read your blog occasionally and i own a similar one and i was just wondering if you get a lot of spam responses? If so how do you prevent it, any plugin or anything you can advise? I get so much lately it’s driving me mad so any help is very much appreciated.

  38. Hey I know this is off topic but I was wondering if you knew of any widgets I could add to my blog that automatically tweet my newest twitter updates. I’ve been looking for a plug-in like this for quite some time and was hoping maybe you would have some experience with something like this. Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your new updates.

  39. I’m really enjoying the design and layout of your site. It’s a very easy on the eyes which makes it much more enjoyable for me to come here and visit more often. Did you hire out a designer to create your theme? Excellent work!

  40. Whats up this is somewhat of off topic but I was wondering if blogs use WYSIWYG editors or if you have to manually code with HTML. I’m starting a blog soon but have no coding knowledge so I wanted to get advice from someone with experience. Any help would be greatly appreciated!

  41. I’m not sure where you are getting your info, but good topic. I needs to spend some time learning more or understanding more. Thanks for great information I was looking for this information for my mission.

  42. Heya! I just wanted to ask if you ever have any trouble with hackers? My last blog (wordpress) was hacked and I ended up losing many months of hard work due to no data backup. Do you have any solutions to protect against hackers?

  43. Hello there, just became aware of your blog through Google, and found that it is really informative. I’m gonna watch out for brussels. I will appreciate if you continue this in future. Lots of people will be benefited from your writing. Cheers!

  44. Do you mind if I quote a couple of your posts as long as I provide credit and sources back to your site? My blog site is in the very same area of interest as yours and my visitors would truly benefit from a lot of the information you present here. Please let me know if this alright with you. Cheers!

  45. Hello! I could have sworn I’ve been to this site before but after reading through some of the post I realized it’s new to me. Anyways, I’m definitely glad I found it and I’ll be bookmarking and checking back often!

  46. Do you mind if I quote a couple of your posts as long as I provide credit and sources back to your webpage? My website is in the very same area of interest as yours and my visitors would truly benefit from a lot of the information you present here. Please let me know if this alright with you. Regards!

  47. Unquestionably believe that which you stated. Your favorite justification appeared to be on the net the simplest thing to be aware of. I say to you, I definitely get irked while people consider worries that they plainly do not know about. You managed to hit the nail upon the top as well as defined out the whole thing without having side effect , people can take a signal. Will likely be back to get more. Thanks

  48. What’s up all, here every one is sharing these familiarity, thus it’s pleasant to read this website, and I used to go to see this webpage everyday.

  49. Hi there, i read your blog occasionally and i own a similar one and i was just wondering if you get a lot of spam comments? If so how do you prevent it, any plugin or anything you can suggest? I get so much lately it’s driving me mad so any help is very much appreciated.

  50. I think this is one of the such a lot significant information for me. And i’m glad reading your article. However want to statement on few basic things, The website taste is great, the articles is in reality excellent : D. Just right task, cheers

  51. ?????? ???????? ???????? ?????? ??? ? ????? ???????? ??? ?????? ?????????? ? ?????????????? ?? ????? styazhka-pola24.ru! ?? ????????????? ?????? ?? ?????????? ?????? ???? ? ?????? ? ???????, ? ????? ?????????

  52. ???-200T ???????? ?????????? ??????????? ????, ??????????? 220 ????? ?????? online ? ??????? ?????????????? ???????? ? ???????????? ??? ?????????????? ??????? ????????????????? ??????????? ?????????????? ????? ???????? 50?? ??????? ??????? ??????, ?????????????? ???????, ?????? ?????????? ?????????? ???? (????), ? ????? ?????? ???????? ? ???????? ???????????? ? ??????? ????????? ???????????? ? ???????? ?????????????? ?????????? ???????? ???? ??????????? ???? 13109-97.

    ????????????? ?????????? http://stabrov.ru.

  53. Hi there! This post couldn’t be written any better! Going through this post reminds me of my previous roommate! He always kept talking about this. I’ll forward this information to him. Pretty sure he’ll have a very good read. Thank you for sharing!

  54. My spouse and I stumbled over here different page and thought I may as well check things out. I like what I see so now i am following you. Look forward to looking at your web page for a second time.

  55. I think what you postedtypedsaidthink what you postedwrotebelieve what you postedtypedsaidbelieve what you postedwrotesaidWhat you postedtypedsaid was very logicala bunch of sense. But, what about this?think about this, what if you were to write a killer headlinetitle?content?typed a catchier title? I ain’t saying your content isn’t good.ain’t saying your content isn’t gooddon’t want to tell you how to run your blog, but what if you added a titleheadlinetitle that grabbed a person’s attention?maybe get a person’s attention?want more? I mean %BLOG_TITLE% is a little vanilla. You could peek at Yahoo’s home page and watch how they createwrite post headlines to get viewers interested. You might add a video or a related picture or two to get readers interested about what you’ve written. Just my opinion, it might bring your postsblog a little livelier.

  56. Oh my goodness! Amazing article dude! Thanks, However I am going through issues with your RSS. I don’t know why I am unable to subscribe to it. Is there anybody else getting identical RSS problems? Anybody who knows the solution will you kindly respond? Thanx!!

  57. Someone necessarily help to make critically articles I would state. This is the first time I frequented your web page and so far? I amazed with the research you made to create this actual publish amazing. Great activity!

  58. I’m impressed, I must say. Rarely do I encounter a blog that’s both educative and engaging, and let me tell you, you have hit the nail on the head. The issue is something which not enough people are speaking intelligently about. I’m very happy that I found this in my search for something relating to this.

  59. When I originally commented I clicked the “Notify me when new comments are added” checkbox and now each time a comment is added I get three emails with the same comment. Is there any way you can remove me from that service? Thanks a lot!

  60. I’m impressed, I must say. Rarely do I encounter a blog that’s both educative and entertaining, and let me tell you, you have hit the nail on the head. The issue is something not enough folks are speaking intelligently about. I am very happy that I found this in my search for something relating to this.

  61. Does your website have a contact page? I’m having a tough time locating it but, I’d like to send you an e-mail. I’ve got some creative ideas for your blog you might be interested in hearing. Either way, great site and I look forward to seeing it expand over time.

  62. It is appropriate time to make a few plans for the future and it is time to be happy. I have read this post and if I may just I want to recommend you few fascinating things or suggestions. Perhaps you could write next articles referring to this article. I wish to read more things approximately it!

  63. Pretty nice post. I just stumbled upon your blog and wanted to say that I have really enjoyed browsing your blog posts. In any case I’ll be subscribing to your feed and I hope you write again soon!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Back to top button