Earthquakes were detected all over the world today, as a wave of seismic tremors shook the Americas. Most of the activity today was felt on the infamous Ring of Fire, where some 90 percent of the planet’s earthquakes take place. The most significant earthquake measured today was at Bella Bella, Canada, and the United States Geological Survey (USGS) has issued alerts for the region.
The US and Canada saw the most earthquake activity today, with 29 earthquakes in the region.
A cluster of 20 smaller tremors rocked Alaska, and five earthquakes pushed at the coast of California.
All of these earthquakes were in the 2.5 to 4.1 magnitude range and posed no threat to people nearby.
However, one potentially deadly 6.9 magnitude earthquake struck Canada, at the Indian Reserve community of Bella Bella.
The USGS issued a green alert for shaking-related deaths and economic loss in Bella Bella.
They currently estimate there is a 69 percent chance at least one person could die from the recent tremors.
There is a similar 65 percent probability at least £750,000 (£1 million) worth of damage in the area.
Overall, experts say there is a “low likelihood of casualties and damage”.
The USGS said there was little to no effects detected from landslides or liquefaction (when the ground can swallow buildings).
However, the organisation said there are some structures which could be vulnerable to earthquake effects.
The USGS said: “The population in this region resides in structures that are highly resistant to earthquake shaking, though some vulnerable structures exist.
“The predominant vulnerable building type is low-rise reinforced/confined masonry construction.”
The bulk of today’s earthquake activity surged around fault lines, where free-floating continental plates on the Earth’s crust rub together and cause friction.
The result is a varying amount of pressure on the ground below which travels out and becomes earthquakes of varying magnitudes.
The Earth’s crust is too far down for many of these earthquakes to cause damage.
However, sometimes the pressure of two plates together can push upwards, which ruptures the surface and causes severe life-threatening tremors.