Uploaded August 2026 | Updated September 2026, 13 hours ago
On August 13, 2026, a magnitude 4.7 earthquake struck the remote Greenland Sea along the Knipovich Ridge, one of the slowest-spreading mid-ocean ridges on Earth. A related magnitude 4.5 event followed shortly afterward in the same area.
In this video we break down: • Exact location and depth of the M4.7 quake (73.476°N, 7.828°E, 10 km depth) • Why the Knipovich Ridge produces earthquakes • Spreading rate of the ridge (14–17 mm per year – ultraslow) • The largest historical earthquakes in this region, including the 1915 M6.5 and the 1992 M6.1 and M6.7 events • Whether these quakes can generate tsunamis (spoiler: they generally do not) • What this activity means for the Arctic plate boundary between North America and Eurasia
The Knipovich Ridge runs roughly north-south between Greenland and Svalbard and is characterized by highly oblique spreading. Because it spreads so slowly, it produces fewer large earthquakes than faster ridges, but moderate events like today’s M4.7 still occur regularly.
#Earthquake #GreenlandSea #KnipovichRidge #ArcticEarthquake #Svalbard #NaturalDisasters #SeismicActivity #MidOceanRidge #UltraslowSpreading #PlateTectonics #MaryGreeleyNews
On August 13, 2026, a magnitude 4.7 earthquake struck the remote Greenland Sea along the Knipovich Ridge, one of the slowest-spreading mid-ocean ridges on Earth. A related magnitude 4.5 event followed shortly afterward in the same area.
In this video we break down: • Exact location and depth of the M4.7 quake (73.476°N, 7.828°E, 10 km depth) • Why the Knipovich Ridge produces earthquakes • Spreading rate of the ridge (14–17 mm per year – ultraslow) • The largest historical earthquakes in this region, including the 1915 M6.5 and the 1992 M6.1 and M6.7 events • Whether these quakes can generate tsunamis (spoiler: they generally do not) • What this activity means for the Arctic plate boundary between North America and Eurasia
The Knipovich Ridge runs roughly north-south between Greenland and Svalbard and is characterized by highly oblique spreading. Because it spreads so slowly, it produces fewer large earthquakes than faster ridges, but moderate events like today’s M4.7 still occur regularly.
#Earthquake #GreenlandSea #KnipovichRidge #ArcticEarthquake #Svalbard #NaturalDisasters #SeismicActivity #MidOceanRidge #UltraslowSpreading #PlateTectonics #MaryGreeleyNews
