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M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

earthquake.usgs.gov

201–210 of 384 posts

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#201
post #9

That was eerie! I felt my apartment building start to rock and sway as the walls were creaking. Not something I’m used to as a NY native, and not something I loved to experience 20+ floors above the ground.

I remember being in a 4th floor office and feeling the building sway. I can't imagine how terrifying 20+ floors up would be.

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#202

I felt that one too in upstate NY, more of a rumbling that anything more violent. Doesn't even come close to the one I experienced in Peru one time, where everything felt like a ship on rough seas... never want to live through that kind of quake again!

I prefer living through an earthquake than not!

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#203

Felt that very strongly in southern Westchester county NY. Not like the 2011 earthquake I felt in NYC, which was kind of slow and made the building I was in sway violently; this was more like the vibrations from a huge truck passing nearby, but more intense. Loud and very unpleasant, about 15 seconds duration. Did not like that at all, am now inspecting all our services like gas and water for disruption, checking for…

As a native Californian this provokes a bit of a chuckle. Try a six plus sometime!

But seriously, I hope everything is fine.

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#204
post #58

I'm in Brooklyn and felt it while on a call with an NJ resident who was the first to say "are we having an earthquake??" Do earthquakes have a propagation speed? Might she have felt it before me?

Yes, the speed of sound (through the earth, so faster than the speed of sound in air); yes. In California, typically usgs has earthquakes posted before I can feel them. They didn't have this one a few minutes after I felt it, so I feel like automatic earthquake detection is off in this area of the US.

In the Bay Area, everyone gets an SMS message that says an earthquake is coming. I've felt/heard the shaking 10-20 seconds later.

Some industrial equipment shuts down to avoid damage.

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#206

Earlier quoted context omitted.

Earthquake magnitude usually changes a bunch in the first hour or two as new data comes in. For example some of the data comes from stations on the other side of the planet, and it takes a while for the wave to propagate that far.

That's one possible explanation, though I've been on usgs.gov a lot from the first I heard of this, and I've only ever seen 4.8 on it. Odd, also that the OP sharing this shared a link to 4.8 but put 4.7 in the title. But the text on that page might trick your eye, between "M 4.8 - 7 km N" and "Magnitude 4.8 mwr Depth 4.7 km".

Those of us in California are used to this. We feel the shake and look it up, and see one number. News articles get written with one of those numbers. After a while it changes, possibly a few times, to some number close to the initial report.

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#207
If any west-coasters are confused as to how this is news: the Northeast is sort of geologically unusual for the US in that we have almost no surprising, sudden weather thingies.

No tornados, mild thunderstorm, occasional hurricanes (but they are usually weakened a bit compared to, like, Florida by the time they get up here and they’ve spent a long time going up the coast so they tend to be well tracked by forecasters), some flooding but not much, and no earthquakes. Our bad weather events are usually blizzards, which you can see coming and which take a while to accumulate.

We’re right in the middle of the North American plate and the area is covered in gentle old hills and mountains.

So, we’re all just not used to the planet surprising us!

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#208

Felt that very strongly in southern Westchester county NY. Not like the 2011 earthquake I felt in NYC, which was kind of slow and made the building I was in sway violently; this was more like the vibrations from a huge truck passing nearby, but more intense. Loud and very unpleasant, about 15 seconds duration. Did not like that at all, am now inspecting all our services like gas and water for disruption, checking for…

As a native Californian this provokes a bit of a chuckle. Try a six plus sometime! But seriously, I hope everything is fine.

Buildings a quite a bit older on the east coast and building codes are obviously more lax so we should probably have some empathy here haha.

Re: M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake

#209
post #7

I felt it in Mass -- I was working on the second floor. My wife was on the ground floor and didn't feel it. From our internal slack channel, this seems fairly common -- people on the ground floor don't feel it here in MA, but higher floors, they do feel it.

This was my second minor quake that could be felt in Mass. I was driving both times. First time I thought my steering felt suddenly rubbery. I was in a rotary. Didn't notice this one.
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