EQ Quake just now in N CA

[dioptase]

Just got rattled here, shortly before 1:45 am local time.

USGS says 5.1 quake not that far from us, to the southwest. Looks to be maybe along the San Andreas.

Hopefully this is just a one-off and not a foreshock.

 

[dioptase]

Downgraded now to 4.9.

It's been quite a while since we've had such a rattler. Was trying to decide whether to get into a doorway or not. (I'm not really physically able to dive under a table or anything like that.)

 

[Czechsix]

Been a busy few hours for the quakes. That big 7.x, your 4.9, and we had a decent one up here also.

 

[dioptase]

What 7.x and where? And where's "up here", Alaska?

I'm seeing a bunch of 4s and 5s in Indonesia.

 

[Southside]

Currently, mucho solar activity.
It appears it goes hand in hand with earthquakes.

 

[dioptase]

Client Challenge

An earthquake of magnitude 4.9 shook residents awake across the Bay Area at 1:41 a.m. early Thursday morning.
The earthquake was centered near Boulder Creek in the Santa Cruz Mountains, according to the U.S. Geological Survey. Shaking of a few seconds or more was felt in Oakland, and San Francisco, with some people reporting a sharp jolt. Residents as far north as Petaluma felt the quake. At a home near the epicenter, a book was knocked off the shelf. Residents in that area generally reported little damage aside from scared pets and, for some, broken dishes, according to social media groups.

People across the Bay Area got earthquake alerts, which go out for earthquakes of magnitude 4.5 and above. In Boulder Creek, the alerts — unsurprisingly — came after the shaking began.

The quake was originally reported at 5.1 magnitude but quickly revised down to 4.9.

Various faults run through the Santa Cruz Mountains area, and it was not immediately clear which fault triggered the overnight quake. The 6.9 magnitude Loma Prieta earthquake that struck in 1989 off the San Andreas Fault was epicentered near Mount Loma Prieta in the Santa Cruz Mountains.

****
The article posts something I forgot to mention.... both of our cell phones started shrieking several seconds after the shaking started. I wasn't sure if that meant something bigger was coming or not.

Bottom line there I guess is that any large earthquakes here, the quake detector alerts are not going to give much if any forewarning. (Even if they did... if the phone is across the room, by the time you get there.... and it's not clear if it's the same sound in the alert as for the silver and amber alerts (which by now we honestly ignore).)

 

[tanstaafl]

What 7.x and where?

7.4
127 km WNW of Ternate, Indonesia
2026-04-01 15:48:12 (UTC-07:00)
35.0 km

USGS isn't showing anything for northern California. Are you talking about the one south of San Francisco? (San Francisco is my dividing line between northern and southern California.)

 

[West]

7.4
127 km WNW of Ternate, Indonesia
2026-04-01 15:48:12 (UTC-07:00)
35.0 km

USGS isn't showing anything for northern California. Are you talking about the one south of San Francisco? (San Francisco is my dividing line between northern and southern California.)

I draw the line there too. The armpit of California. From San Francisco to Sacramento to Lake Tahoe.

 

[1-12020]

The quake in somes is interesting and is more nor cal.
A guy I worked with had a Nor-Cal tat. I asked where he lived... near bay area?
He was a goober and was really from so-cal central cal.

 

[dioptase]

The quake was at/near Boulder Creek, so it is SW of San Jose.

And yes, the dividing line between N and S CA is somewhat murky. For the most part I think of San Jose as N CA (and I think that most people here do), but it is maybe more properly at the northern end of central CA, if you think of CA in thirds. (It's a big state, after all.)

 

[Czechsix]

What 7.x and where? And where's "up here", Alaska?

I'm seeing a bunch of 4s and 5s in Indonesia.

Someone already posted, but yes, the 7.x was Indonesia. Up here is Alaska, we get quakes pretty much daily. Every couple of months a decent shaker.

 

[dioptase]

If you're getting "a decent shaker" every couple of months up there, you are getting them a whole lot more than we do here. Maybe Alaska should be the state that's known for earthquakes!

 

[9idrr]

The quake was at/near Boulder Creek, so it is SW of San Jose.

And yes, the dividing line between N and S CA is somewhat murky. For the most part I think of San Jose as N CA (and I think that most people here do), but it is maybe more properly at the northern end of central CA, if you think of CA in thirds. (It's a big state, after all.)

I think SoCal begins at Marysville.

 

[BV141]

I'm about 15 miles from the epicenter.
I felt it (as I was awake) and it woke my wife and daughter.

 

[Knoxville's Joker]

Currently, mucho solar activity.
It appears it goes hand in hand with earthquakes.

If one subscribes to the expando planet model that correlation makes sense (solar energy passing through, a small percentage gets converted to physical matter inside the earth)

 

[Southside]

If one subscribes to the expando planet model that correlation makes sense (solar energy passing through, a small percentage gets converted to physical matter inside the earth)

I can work with any scientific theory except flat earth!
Much to the dismay of a friend.

 

[Knoxville's Joker]

I can work with any scientific theory except flat earth!
Much to the dismay of a friend.

Flat earth theory is a circular argument that falls flat on its face when you factor in certain kinds of science in certain ways.

 

[Profit of Doom]

 

[Profit of Doom]

Flat earth theory is a circular argument that falls flat on its face when you factor in certain kinds of science in certain ways.

You mean certain kinds like physics and gravity?

 

[Profit of Doom]

But, the Bible says so.

 

[Knoxville's Joker]

You mean certain kinds like physics and gravity?

Perhaps... Plus if the earth was flat and the Egyptian Gods were cats, they would have knocked all the monuments off the edge of the earth...