The 4 synchronous large earthquakes off Chile (2 M6.7 and 2 M6.8) are a true WARNING sign of bigger events to come

4 synchronous M6.7-M6.8 earthquakes hit off Chile on December 27
4 synchronous M6.7-M6.8 earthquakes hit off Chile on December 27, 2020. Picture via Steve Quayle

Depending on the app you use, three or four strong earthquakes hit off Chile on December 27, 2020 at 9:39 pm UTC.

These are called synchronous quakes, each of them having a ‘s-wave’ and a ‘p-wave’ (see below for their meaning).

4 synchronous M6.7-M6.8 earthquakes hit off Chile on December 27 2020
4 synchronous M6.7-M6.8 earthquakes hit off Chile on December 27, 2020. Picture via Steve Quayle

But because those large quakes were SYNCHRONOUS with each other, you can deny, if you want, the existence of the other 2(-3) shocks. So it’s not that they didn’t happen, it’s just that the different seismic networks removed 2(-3) of these strong jolts.

However, the truth is that those Earth tremors are SYNCHRONOUS with the molten magma moving under their epicenters. And this means that the temblors are a true WARNING sign of bigger events to come.

Yes, these quakes in sync with each other at the same epicenter give you a direct WARNING of events which will follow!

This region, adjacent to the fast-moving Nazca Plate, has high tectonic activity as shown by the four M6.7 and M6.8 synchronous seisms and the nearby epicenter of the strongest earthquake recorded in modern times, the 1960 Valdivia earthquake.

Of the world’s 36 known earthquakes with M ≥ 8.5 since the year 1500, one-third occurred in Chile.

strong earthquakes in Chile
Map showing the strongest known Chilean earthquakes ≥ 8.5 M since the year 1500. The subduction of the Nazca Plate produces massive quakes. via Wikipedia

What are the different types of seismic waves?

Seismic waves are the waves of energy that travel through the earth and is recorded on seismographs after the sudden breaking of rock within the earth or an explosion.

There are several different types of seismic waves. The two main kinds of waves are body waves (travel through the earth’s inner layers) and surface waves (only move along the surface of the planet).

Earthquakes radiate seismic energy as both body and surface waves.

What are the different types of body waves?

Body waves arrive before the surface waves emitted by an earthquake. These waves are of a higher frequency than surface waves.

1. The P waves

The first kind of body wave is the P waveprimary wave or compressional wave, the fastest kind of seismic wave, and, consequently, the first to ‘arrive’ at a seismic station.

The P wave can move through solid rock and fluids, like water or the liquid layers of the earth. It pushes and pulls the rock it moves through just like sound waves push and pull the air.

Have you ever heard a big clap of thunder and heard the windows rattle at the same time? The windows rattle because the sound waves were pushing and pulling on the window glass much like P waves push and pull on rock.

Sometimes animals can hear the P waves of an earthquake. Dogs, for instance, commonly begin barking hysterically just before an earthquake ‘hits’ (or more specifically, before the surface waves arrive). Usually people can only feel the bump and rattle of these waves.

Subjected to a P wave, particles move in the same direction that the wave is moving in, which is the direction that the energy is traveling in, and is sometimes called the ‘direction of wave propagation’.

2. The S wave

The second type of body wave is the S wave or secondary wave. This is the second wave you feel in an earthquake.

The S wave is slower than the P wave and can only move through solid rock, not through any liquid medium.

S waves move rock particles up and down, or side-to-side and perpendicular to the direction that the wave is traveling in (the direction of wave propagation). 

What are surface waves?

Surface waves only travel through the crust and are therefore easily distinguished on a seismogram.

Though they arrive after body waves, they are almost entirely responsible for damage and destruction associated with earthquakes.

This damage and the strength of the surface waves are reduced in deeper earthquakes.

1. Love waves

The first kind of surface wave is called a Love wave, which was named after the a British mathematician A.E.H. Love.

It’s the fastest surface wave and moves the ground from side-to-side. Confined to the surface of the crust, Love waves produce entirely horizontal motion.

2. The Rayleigh Wave

The other kind of surface wave is the Rayleigh wave, named after Lord Rayleigh.

Most of the shaking felt from an earthquake is due to the Rayleigh wave, which rolls along the ground just like a wave rolls across a lake or an ocean.

Because it rolls, it moves the ground up and down, and side-to-side in the same direction that the wave is moving.

So to come back to our 3-4 synchronous earthquakes, 2-3 were removed to have a more ‘readable’ and a less ‘fear-mongering’ and alarmist map… But they have existed and are a true warning signs of bigger things to come! So be prepared and get ready! More earthquake news on Strange Sounds and Steve Quayle.

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  1. M 5.7 – 205 km W of Bandon, Oregon

    2020-12-29 07:10:29 (UTC)43.371°N 126.914°W10.0 km depth
    Is Cascadia final hours is closer?

  2. My old dog jumped on my chest while I was sleeping to wake me before the Northridge quake hit. Bookshelves fell over, my aquarium pump got knocked around and leaked water all over my carpet too. I couldn’t stand up once I got knocked down, so I crawled to the doorway. We didn’t have structural damage, which was a relief.

    This synchronous earthquake activity in the Chile area sounds pretty serious. Those quakes were big, and each tenth of a point up the Richter scale is an exponential increase. The history of large quakes down there in Chile is also of concern.

    Really great read on this article

  3. Thanks alot Strange Sounds we are in same page. God help 12 states in North West of USA from BC to San Diego ?New full moon is coming in 38 hours?

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