Hi YouTubers.
I'm glad you're all here, thank you for joining me.
Well, there was a magnitude 5.0
earthquake near Puerto Rico at 07:48 a.m.
Local time.
It was very shallow, only two 5 miles below sea level.
Altogether.
In the last 24 hours there's been 20 earthquakes, a
lot of them down here on the southern coastline.
And those of you that follow me know
the danger of a large earthquake and past
tsunamies that they've had in this location.
Also there was a magnitude 3.9 earthquake
there in the Dominican Republic that was fairly
deep, about 64 miles below sea level.
You got to worry about these shallower ones.
93 people said they felt it and USDS
gave it an intensity level of seven.
I thought that was unusual being so far
from land, but it says everyone runs outdoors.
Damage to buildings varies depending on
the quality of the construction.
It would have been noticed by drivers of automobiles.
So going to the map of the felt reports here, you
can see it was felt across just about the entire island.
Most of the population lives along the coast,
which is dangerous if there's a large earthquake
because that would turn to quicksand. Yeah.
And right here yeah.
They got one response from Agua Dilla.
Let's go to Google Earth.
Over here we have the Puerto Rican trench, we
got the Pacific plate sliding underneath the Caribbean there.
And that is why they have that magnetic anomaly.
So let's go to alright, let's go to Agua Dilla
where they said they had the intensity level of seven.
Yeah.
Right along the coast.
This area here in the past
has been slammed by tsunamis.
Yeah.
I wonder who it scared and who had the damage.
What if we got a street view I can do.
Let's see.
Well, it's just the main roads, it looks like.
All right, let's go there.
Okay, let's look around.
Narrow roads.
Boy, if there was a large earthquake, all
this debris would end up in the road.
People would not be able to evacuate.
Yeah, I would say some
of it's fairly poor construction. Yeah.
Poverty.
Those poor people. Yeah.
They get hit by so many hurricanes
and earthquakes and stuff like that.
Oh, my goodness.
I didn't download any monitors often because of the
power outages that happened there in Puerto Rico.
Yeah, it's hard to get them to work
and so I just didn't even bother.
Another street view.
Yeah.
I don't think these buildings
would hold up in earthquakes.
I mean, look at the rust deterioration. Yeah.
Who got scared enough to go outside?
Yeah, I like their front door there.
Oh, the building must be empty.
It's up for sale.
Probably can get it really cheap.
Yeah, those poor people on another
one looks like it's been abandoned.
So in 1918 there was a magnitude
7.3 close to the same location.
That was on October 11.
And it occurred about 20 km northeast of Puerto Rico.
It is.
It says here the most recent damaging
seismic event to affect the island.
Some of the felt reports that were sent into Emse.
It says they felt their chair move.
Another one sit a little.
I don't know.
Another one said they felt it.
Another one said they definitely felt it.
And it gives the names of the towns.
Another one.
Let's see another one.
Oh.
Seismic alert was activated and that was 126 km
southeast, so that would be about 78 miles.
Another one says the seismic alert was activated.
Seismic wave detected.
This one here says it shook their car,
so they must have been in it.
Another one, slight movement, strong in that area.
I'm glad they do do the translating felt soft there.
This one here says that their bed
moved and it woke them up.
I'll give you a link to this document, but the
October 11, 1918 Puerto Rico earthquake and tsunami is the
most recent damaging seismic event to affect the island.
More than 100 people died and
the island sustained $4 million.
And that was in 19 $18.
So can you imagine if it happened today?
Evidently some people lost entire families.
People drowned from the tsunami.
Here on Wikipedia, it says the waves were
almost 20ft high and 40 people drowned, 32.
In the town of Aguadilla, the tsunami was estimated
between 19.7ft and then in another area, 17ft high.
During large earthquakes, water saturation sands can liquefy
behave like dense fluid rather than wet solid
liquefaction can be characterized by cracks or sand
blow holes on the ground surface.
During the 1918 earthquake, fountain of sands blow holes
up to ten to 12ft high were observed during
the earthquake, as well as cracks and low lying
grounds, especially in cane fields in western Puerto Rico.
There, in Agua Dilla, the lighthouse keeper reported that
the water began to recede during the earthquake itself
and then reached an elevation of 15ft.
The tsunamis evidently arrived seven or four to
seven minutes after the earthquake in the town
of Aguadilla, 32 people drowned and nearly 300
huts along the beach were destroyed.
The tsunami reach I'm not going to
try and pronounce that 20 minutes after
the earthquake with a height of 5ft.
This here is evidently the
ruins of that original lighthouse.
It says it was originally built by the
Spanish in the 18th century and was partially
destroyed by the earthquake in 18.
There's also a close up of this.
What a difference.
Right here's an image of the
lighthouse before it was destroyed.
I find all this history quite fascinating.
It says the tower was shattered by the
shock and likely would have fallen if not
for the support of the iron stairway.
Cracks appeared in the main wall of lighthouse
and many more developed after a strong aftershock.
On October 24, it was necessary to abandon the
lighthouse and display the light from a temporary wooden
structure until the new lighthouse could be constructed.
The lighthouse keeper was living at the
lighthouse at the time of the earthquake
with his wife and three children.
According to a report by his greatgranddaughter, the keeper's
wife had a sense that something was not right.
Just before the tremor, she noticed the air suddenly grew tight
and the birds were silent and the dog's family dog began
to bark wildly and ran out of the house.
When Francisco ignored their pleas to leave the lighthouse,
she picked up the kids and ran inland.
The keeper soon followed his wife and just
moments later, the tidal wave engulfed the lighthouse.
One of the station's two keeper was in the tower
at the time of the earthquake and he immediately started
down the stairs, but not before noticing that the water
along the nearby shore had started to recede.
The keeper last measured the height of
the flood produced by the tsunami to
be around 15ft, near the lighthouse.
I am sure it got much deeper than that.
So that woman was very smart.
She listened to what I call the quiet voice, told
her to get the children out and to run.
They probably ran up the hill, which I tell
you guys, you need to either if you got
a strong building to evacuate up or go inland.
Yeah, I wonder where the new lighthouse is at.
Anyways, did you feel this earthquake?
And like I say so many times, you have a 20% chance
that this could be a poor shot for something much larger.
Yeah.
Always have a plan, always be prepared and please
stay safe and I will talk to you later. God bless you.
Bye.