Quake Watch 2018

6.4 hits Indonesia.

www.cnn.com...

M 5.3 - Off the coast of Oregon
II
DYFI?
Tsunami Warning Center
Time
2018-07-29 14:10:22 (UTC)
Location
44.011°N 128.774°W
Depth
10.0 km

M 4.4 - Off the coast of Oregon
Time
2018-07-29 14:51:09 (UTC)
Location
44.112°N 128.626°W
Depth
10.0 km

Last weeks swarm and this one are all at 10 km

The Japan one was shallow, the (what I am hoping are aftershocks) are all over 3.
Keeping eyes open!

The plate boundary contact between two such plates generates very large, shallow subduction zone earthquakes such as the Sumatra 2004 M9.1 event, and the 2011 M9.0 Japan earthquake, and is only active to relatively shallow depths - approximately 60 km.

www.usgs.gov...-news_science_products

11 March 2011 at 14:46 JST (05:46 UTC) in the north-western Pacific Ocean at a relatively shallow depth of 32 km (20 mi),

en.wikipedia.org...ōhoku_earthquake_and_tsunami

originally posted by: AlexanderM
6.4 hits Indonesia.

www.cnn.com...

7 just hit again, tsunami warning issued.

www.bbc.com...

originally posted by: kamatty

originally posted by: AlexanderM
6.4 hits Indonesia.

www.cnn.com...

7 just hit again, tsunami warning issued.

www.bbc.com...

Hope everyone is ok there, haven't seen the news yet. Still waiting on our west coast seems so likely it will be soon!

originally posted by: SeaWorthy

originally posted by: kamatty

originally posted by: AlexanderM
6.4 hits Indonesia.

www.cnn.com...

7 just hit again, tsunami warning issued.

www.bbc.com...

Hope everyone is ok there, haven't seen the news yet. Still waiting on our west coast seems so likely it will be soon!

I have the same feeling!!

The quakes in Hawaii just stopped suddenly....

Or they just got tired of posting them.

That was an incredible 3 months of NONSTOP shaking!

"2 earthquakes hit central and northern Alaska regions"

KAVIK RIVER CAMP, Alaska – The U.S. Geological Survey says that two earthquakes have hit Alaska. The agency says that at 6:58 a.m. Sunday a magnitude 6.5 earthquake struck an area 42 miles (67 kilometers) east of Kavik River Camp and 343 miles (551 kilometers) northeast of Fairbanks, the state's second-biggest city. The agency says the earthquake had a depth of about 6 miles (9.9 kilometers.)

At 7:14 a.m., a magnitude 5.1 earthquake hit another area in northern Alaska. The USGS says the earthquake hit a spot about 340 miles (549 kilometers) northeast of Fairbanks.

Source
Several aftershocks were reported in the area. Reports came in about the eqs being felt but no damage reported.

originally posted by: dreamingawake
"2 earthquakes hit central and northern Alaska regions"

KAVIK RIVER CAMP, Alaska – The U.S. Geological Survey says that two earthquakes have hit Alaska. The agency says that at 6:58 a.m. Sunday a magnitude 6.5 earthquake struck an area 42 miles (67 kilometers) east of Kavik River Camp and 343 miles (551 kilometers) northeast of Fairbanks, the state's second-biggest city. The agency says the earthquake had a depth of about 6 miles (9.9 kilometers.)

At 7:14 a.m., a magnitude 5.1 earthquake hit another area in northern Alaska. The USGS says the earthquake hit a spot about 340 miles (549 kilometers) northeast of Fairbanks.

Source
Several aftershocks were reported in the area. Reports came in about the eqs being felt but no damage reported.

A crazy amount of aftershocks underway!

a reply to: radpeteage

A pretty large swarm of more than 200 earthquakes is currently hitting Alaska’s North Slope region. The seismic unrest was triggered by a M6.4 earthquake, 84km SW of Kaktovik, on August 12, 2018. This is the strongest-ever earthquake that hit Alaska’s North Slope region. Since then, more than 200 aftershocks have rumbled the area with several above M4.5 and one reported at magnitude 6.0 seven hours after the first large one. This is the second strongest-ever earthquake that hit Alaska’s North Slope region.

The previous most powerful quake in the North Slope was in 1995 at magnitude 5.2.

The jump from a 5.2 to Sunday’s 6.4 is significant because earthquakes rapidly grow in strength as magnitude rises, he said. A magnitude 6.4 earthquake is 15.8 times bigger and 63.1 times stronger than a 5.2 earthquake, according to the U.S. Geological Survey.

strangesounds.org... -than-200-quakes-shake-northern-alaska.html

Latest info on the Cascadia Subduction Zone.

The following includes more data that may illustrate where the next quake epicenter may occur in the CSZ.

"Where the Next Big Cascadia Earthquake Might Occur"

What we found are two anomalous regions beneath the fault where seismic waves travel slower than expected. These anomalies are large, about 150 kilometers in diameter, and show up beneath the northern and southern sections of the fault. Remember, that’s where researchers have already observed increased activity: the seismicity, locking, and tremor. Interestingly, the anomalies are not present beneath the central part of the fault, under Oregon, where we see a decrease in activity.

The slower sections of movement of the plate are in red and as shown by the tremors are more common and where it is more locked.

Where, Not When?:

Our work does suggest that a large event is more likely to start in either the northern or southern sections of the fault, where the plates are more fully locked, and gives a possible reason for why that may be the case.

See more

Findings on the 2018 Episodic tremor and slip:

“What it means is that we’re in a period that the probability of that earthquake happening is higher so it’s statistically more likely to happen during one of these episodes,” Bird said.

Source1
These happen about every 14 months.

You might not have noticed it, but over the last few months Victoria moved a little farther away from Vancouver.

The south portion of Vancouver Island has shifted about five millimetres — about the width of a pencil — westward, thanks to recent seismic activity.

“When you think of Vancouver Island moving four or five millimetres over the course of a few weeks, that’s an amazing process that has been discovered,” he said.

Source2

a reply to: 727Sky


It was only a matter of time...

South Central, 25 mi. Wasilla, 4.3M, 08:55 local.

Gave a good jolt but not much more as it rolled on by.

Kaboom!!!

earthquake.usgs.gov..."autoUpdate"%3A%5B"autoUpdate"%5D%2C"basemap"%3A"grayscale"%2C"feed"%3A"1day_m25"%2C"listFormat"%3A"de fault"%2C"mapposition"%3A%5B%5B24.6%2C-125%5D%2C%5B50%2C-65%5D%5D%2C"overlays"%3A%5B"plates"%5D%2C"restrictListToMap"%3A%5B"restrictListToMap"%5D%2C"s earch"%3Anull%2C"sort"%3A"newest"%2C"timezone"%3A"utc"%2C"viewModes"%3A%5B"list"%5D%2C"event"%3A"us1000gcii"%7D

Too deep for tsunami.

originally posted by: radpeteage
Kaboom!!!

earthquake.usgs.gov..."autoUpdate"%3A%5B"autoUpdate"%5D%2C"basemap"%3A"grayscale"%2C"feed"%3A"1day_m25"%2C"listFormat"%3A"de fault"%2C"mapposition"%3A%5B%5B24.6%2C-125%5D%2C%5B50%2C-65%5D%5D%2C"overlays"%3A%5B"plates"%5D%2C"restrictListToMap"%3A%5B"restrictListToMap"%5D%2C"s earch"%3Anull%2C"sort"%3A"newest"%2C"timezone"%3A"utc"%2C"viewModes"%3A%5B"list"%5D%2C"event"%3A"us1000gcii"%7D

Too deep for tsunami.

8.2 Fiji

a reply to: radpeteage

Luckily, it was a very deep one, over 550 kilometers deep. At that depth, and considering it's a couple hundred miles from land (the islands) hopefully that combines to equal very low damage around there.

I'm not sure offhand at the moment, but I think quakes at that depth have reduced tsunami risks, too.

A little closer in one direction, shallower in depth, and this could have certainly been a major disaster out there.

www.youtube.com...

More than one hitting area

www.twitch.tv...

My phone just came up with an alert, 7.3 off the coast of Venezuela roughly 76 miles in depth (123 km)
earthquake.usgs.gov...

Tsunami threat has been dropped from what I gather
ptwc.weather.gov...

a reply to: ThePeaceMaker


This is some pretty heavy activity of late!

That deep 8.2 has a lot to do with it


The second biggest at those depths.

a reply to: ThePeaceMaker

this one was picked up by virginia tech seismographs.
www.wdbj7.com...

not sure if this would be normal to have it picked up that far away, but thought it was interesting.