Very strong M7.3 earthquake hits Venezuela at intermediate depth
A very strong earthquake registered by the USGS as M7.3 hit near the coast of Sucre, Venezuela at 21:31 UTC on August 21, 2018. The agency is reporting a depth of 123.2 km (76.5 km). EMSC is reporting M7.3 at a depth of 112 km (69.6 miles). According to the USGS, the epicenter was located  20.9 km (13.0 miles) NNW of Yaguaraparo, 38.4 km (23.9 miles) ENE of Carúpano (population 112 082), 69.4 km (43.1 miles) WNW of Güiria (population 40 000), 107.6 km (66.9 miles) ESE Porlamar (population 87 120) and 109.1 km (67.8 miles) ESE of La Asunción (population  35 084), Venezuela. There are 560 000 people living within 100 km (62 miles). Based on all available data, there is no tsunami threat, PTWC said. Some 52 000 people are estimated to have felt very strong shaking, 2 089 000 strong, 2 587 000 moderate and 3 928 000 light. Buildings were evacuated in the capital Caracas and people fled homes. Shaking was felt as far away as …



A high-speed stream of solar wind is approaching Earth. Estimated time of arrival: Nov. 27th. The onset of the solar wind could kick off 3 days of polar geomagnetic activity, boosted to G1-storm levels by the glancing impact of a CME on Nov. 29th (described below). Arctic sky watchers should be alert for auroras in the nights ahead. 

On Nov. 25th, a filament of magnetism in the sun's northern hemisphere exploded. 

The blast opened a "canyon of fire" in the sun's atmosphere and hurled a coronal mass ejection (CME) into space. This movie from the orbiting Solar and Heliospheric Observatory shows the expanding cloud:

The CME is not heading directly for Earth. However, NOAA analysts have modeled its trajectory and they say that the expanding cloud could deliver a glancing blow to our planet's magnetic field on Nov. 29th. If so, it might add energy to polar geomagnetic storms already in progress due to the earlier arrival of a solar wind stream. Stay tuned for improved forecasts as the CME approaches.

Popular posts from this blog