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all 82 comments

[–]botchman 52 points53 points  (15 children)

This quake is almost in the same location as the 7.4 in 1975 which killed 2 people. Keep in mind this is a shield volcanoe so it doesn't have as severe as eruptions as composite ones (St.Helens).

[–]seis-matters 26 points27 points  (5 children)

Effusive eruptions from shield volcanos can still be severe in terms of large damaging lava flows, they just aren’t explosive like composite volcanos.

[–]botchman 14 points15 points  (3 children)

Very true, also badass name

[–]seis-matters 7 points8 points  (2 children)

Thanks, man. Just want those on Hawaii to know that we still consider their hazards notable. Evacuation ahead of a flow is great to have, but houses and property are still solidly lost during these eruptions.

[–]botchman 2 points3 points  (1 child)

For sure, no active volcano is safe. Isn't the lava flow in this case Pahoehoe?

[–]seis-matters 2 points3 points  (0 children)

Not sure, but both pahoehoe and a’a are basaltic lavas.

[–]Nichijo 3 points4 points  (0 children)

Yeah, when you see pictures of lava fountains, just keep in mind that that's rocks being shot hundreds of feet into the air, and that they are heavy, and coming out in kazillions of cubic units per second. A HUGE amount of lava is released in even a small eruption of Kilauea.

[–]Nichijo 3 points4 points  (3 children)

The two fatalities were from a tsunami that it generated. There was a state or county park, and a scout troop was camping there at the time. The quake hit in the wee hours of the morning, and the park was in a remote location, and pitch black. The park is a small jut of land into the sea, at the base of large cliffs.

One survivor told me they could hear the water rushing out for the tsunami, and at the same time, heard rocks falling from the cliff. It was pitch black, and nobody knew which way to run. He ran anyway, and fell into an existing crack that protected him from the tsunami. His back was all scarred up from the rocks that came across it.

I had been attending a birthday party at an old coffee shack that you could probably push over with your hand. There were a lot of people sleeping inside at the time. Amazingly, that shack came through with no issues whatsoever.

I had been caretaking a ridiculously tall and narrow house a few miles away, and just knew that it would be a pile of sticks in the morning. Again, no issues. Crazy.

[–]phryan 0 points1 point  (2 children)

I've camped near a mountain lake during a storm and the (sand) shoreline has moved 20ft closer to the tent overnight. Can't imagine being in close proximity to the ocean at night.

[–]Nichijo 1 point2 points  (1 child)

It depends entirely on the shoreline. In Lahaina on Maui, they built structures right over the water, which is more like a lake shore, because the reef breaks up the ocean swells. I used to sleep in a hammock for a while, and when surf was big, it came right under me. There's not much tidal fluctuation in Hawaii.

OTOH, I took a trip to Long Beach in Washington to check out a storm. There's a high berm that has openings in places so that people can drive on it. Normally, it's super flat and hard sand, and officially, a highway. People drive and camp on that beach.

But this night, there was a storm. When I drove to the top of the berm, the headlights showed raging surf right in front of me. The berm was being eaten away. I get chicken skin when I think of that sight, of the headlights of my car looking out into pure black and white. Blackness of the sky, whiteness of the surf. I came within a few feet of dropping off into the surf. Next day, There was a neat cliff about 10-20 feet high on the berm. And piles of tan colored foam (can't remember what that stuff is called) left by the surf.

After living in Hawaii for 20 years, Long Beach is still my favorite beach. It has a real "there be dragons" feel to it.

[–]Grisswaldo 2 points3 points  (4 children)

Isn't there a possibility of chain eruptions?

[–]botchman 13 points14 points  (2 children)

It will most like be a fissure vent eruption, where the ground has a rift the lava will find a way out.

[–]Grisswaldo 2 points3 points  (0 children)

Thanks, I'll look that up.

[–]Nichijo 2 points3 points  (0 children)

Yeah, and it's a brand new one in a populated area. This a major big deal. I kinda wish I was there, but again, glad I'm not. The eruption has been going on for some 30 years, and this is definitely the most significant development.

Source: former resident of the area for 20 years.

[–]Nichijo 1 point2 points  (0 children)

The current eruption series has been going on since the mid 80s, and is by far the longest in recorded history. It's amazing to think that there are people who are now adults, who have lived with it all their lives.

Before, it was big news, big party when the volcano erupted. Eruptions would last a few days, weeks, or months at the most. Everybody would be excited, go up to the summit to look, and it was just fun.

Now, it's sort of taken for granted that the volcano is erupting to some extent all the time. If not flowing with lava, you can always see the smoke.

[–]BillyShears2015 94 points95 points  (33 children)

Is there a reason why we don’t have a live thread to keep up with the ongoing geologic disasters in Hawaii?

[–]HellaPizza 40 points41 points  (21 children)

My family on Maui said they felt the 6.9 and some of their friends near the volcano on the big island were evacuated by the national guard.

[–]Amelaclya1 10 points11 points  (0 children)

There is a link to a live thread on /r/hawaii

Edit: Here is the mega thread which has a link to a live thread in it. Has been going since yesterday so lots of cool videos.

http://goedhartvoordieren.nl/?page=r/Hawaii/comments/8gwmq8/meta_big_island_volcanic_activity_megathread/

[–]seis-matters 10 points11 points  (2 children)

R/Hawaii is pretty active.

[–]Nichijo 6 points7 points  (1 child)

r/bigisland would be better, 'cause that's where it's happening.

[–][deleted] 17 points18 points  (0 children)

For real I never actively look at this sub but I was wondering where the fuck the "volcano erupting in suburbs" threads were

[–]fingerpaintswithpoop 2 points3 points  (2 children)

Mods literally just posted one like 20 minutes ago.

[–]BillyShears2015 1 point2 points  (1 child)

We did it reddit!

[–]Kishara -2 points-1 points  (0 children)

You did :)

[–]Nichijo 2 points3 points  (0 children)

/r/bigisland is pretty close to that.

[–]Dexter_KilledMe 13 points14 points  (1 child)

Would be nice to have a live thread....Surprised it’s taken this long to see a post about this!

[–]HIVnotAdeathSentence 17 points18 points  (2 children)

More eruptions? You know what that means? They can finally film an on location sequel to Dante's Peak with real ash and lava.

[–]Show-Me-Your-Moves 8 points9 points  (0 children)

Someone grab Pierce Brosnan

[–]Nichijo 4 points5 points  (0 children)

Finally, in spite of the fact that this eruption has been going on for 30+ years.

This is a new phase, with lava outbreaks in a new location, near homes, so it's a big deal to me.

[–]compbioguy 20 points21 points  (12 children)

I speculate this means something big. Lava spitting fissures, ash out of Pu'u O'o, and two big earthquakes including a 6.9? That seems like we are looking at a big escalation of eruption

Edit: I find it somewhat humorous that the earthquake hazards website is down at USGS

Edit2: I meant volcanic hazards website ...

[–]seis-matters 10 points11 points  (0 children)

We may not necessarily be seeing an increase in activity; this may be the mainshock as it is quite large. There is the possibility of more earthquakes, fissures, or other triggered hazards like landslides so people on the island should be prepared, but a large earthquake isn’t always followed by a larger earthquake.

[–]Atomskie 5 points6 points  (7 children)

Not to mention the main lava lake drained away.

[–]Amelaclya1 4 points5 points  (4 children)

Did it really? According to a friend, it was overflowing like a week ago. I didn't get a chance to drive over there and have a look :(

[–]Atomskie 4 points5 points  (2 children)

Yep, the webcams show it dry as can be. It happened 6 or 7 hrs ago. Its gotta go somewhere too.

[–]Nichijo 1 point2 points  (1 child)

Link to webcams? There are some that I don't think are really up to date.

[–]Atomskie 0 points1 point  (0 children)

Cant help you till later, I'm out now. I found them on Twitter under the kilauea hashtag.

[–]Nichijo 0 points1 point  (0 children)

Yeah, one video I watched showed large chunks of Halemaumau falling in as well. I mean, if you were standing 50 feet from the edge, you could have dropped in. And you know, there is an observer's outpost somewhere right on the edge of it.

[–]godonskis2 4 points5 points  (1 child)

Something is going down, down below.

[–]Atomskie 6 points7 points  (0 children)

Yup. Pele is gonna put on a show.

[–]Y-Cha 6 points7 points  (0 children)

Edit: I find it somewhat humorous that the earthquake hazards website is down at USGS

Try refreshing it every so often.

It seems like it's been off and on throughout the day when I've been checking.

[–]Harabeck 0 points1 point  (0 children)

Lava spitting fissures, ash out of Pu'u O'o, and two big earthquakes including a 6.9? That seems like we are looking at a big escalation of eruption

It's more likely that was the big part, and now it all calms down.

[–]Nichijo 0 points1 point  (0 children)

That seems like we are looking at a big escalation of eruption

I agree. Ash from Pu'u O'o is an almost daily occurance, however. What is significant is the sudden draining and collapse of some of Halema'uma'u -- the summit crater. And this is a new location, far downslope. This is a more significant event than the flow that reached the outskirts of Pahoa a few years ago, and probably the most significant event since the first few months of the eruption.

[–]lordicarus 1 point2 points  (2 children)

Is there any concern of a catastrophic eruption from the volcano? I know this type of volcano is usually more spread out and doesn't really have the type of eruption of taller more recognizable volcanos. Is the expectation that the worst of the eruption is that lava is popping out in all kinds of different places?

[–]Jerrymoviefan3 2 points3 points  (1 child)

This eruption has been going on since 1983 so pressure has been frequently released and major catastrophic events are almost impossible. This week an new vent opened and is releasing lava much closer to homes so that is why this is news.

[–]Valianttheywere 0 points1 point  (0 children)

Back just prior to the LA quake that collapsed the freeways, Darwin was experiencing strong quakes. And now We had one just recent after a gap of thirty years. With all this I'm thinking some heavy quakes in the US in the near future.

[–]Valianttheywere 0 points1 point  (0 children)

Just on an off question has anyone equated dark matter asteroid impacts with earthquakes that dont have an apparent regular matter asteroid cause?