Two days ago, bizarre seismic activity occurred around the world.

Today, Alaska has been hit by a massive 7.0 earthquake that has caused widespread damage.

The National Geographic reports – On the morning of November 11, just before 9:30 UT, a mysterious rumble rolled around the world.

The seismic waves began roughly 15 miles off the shores of Mayotte, a French island sandwiched between Africa and the northern tip of Madagascar. The waves buzzed across Africa, ringing sensors in Zambia, Kenya, and Ethiopia. They traversed vast oceans, humming across Chile, New Zealand, Canada, and even Hawaii nearly 11,000 miles away.

Only one person noticed the odd signal on the U.S. Geological Survey’s real-time seismogram displays. An earthquake enthusiast who uses the handle @matarikipax saw the curious zigzags and posted images of them to Twitter. That small action kicked off another ripple of sorts, as researchers around the world attempted to suss out the source of the waves. Was it a meteor strike? A submarine volcano eruption? An ancient sea monster rising from the deep?

@matarikipax tweeted several images of seismic signals around the world. Here are just a few examples:

“I don’t think I’ve seen anything like it,” says Göran Ekström, a seismologist at Columbia University who specializes in unusual earthquakes.

Today, Alaska is reporting a massive earthquake that’s caused catastrophic damage to many areas in the Anchorage, Alaska area.

Coincidence?

Anchorage Daily News reports – A large earthquake with a preliminary magnitude of 7.0 struck Alaska near Anchorage early Friday morning, damaging roads and buildings, knocking out power and sending people fleeing from buildings and to safety beneath door jambs.

Local Anchorage, Alaska store damaged by the 7.0 earthquake

The epicenter was just north of Joint Base Elmendorf-Richardson, according to the Alaska Earthquake Center. It violently shook the most populous region of the state as people were settling in to work and school.

There were no immediate reports of injuries.

A car is trapped on a collapsed section of the offramp off of Minnesota Drive in Anchorage, Friday, Nov. 30, 2018. Back-to-back earthquakes measuring 7.0 and 5.8 rocked buildings and buckled roads Friday morning in Anchorage, prompting people to run from their offices or seek shelter under office desks, while a tsunami warning had some seeking higher ground. (AP Photo/Dan Joling)

There were several aftershocks, including a sharp jolt felt widely in Anchorage around 10:26 a.m. and another series of aftershocks just before 11 a.m. At least three of them were 5.0.

The earthquake shook buildings violently, cracking walls, leaving some store floors a mess, and leaving desks covered with dust from ceiling tiles.

Watch live coverage here:

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