Did the northern Atlantic Ocean basin start to open at the same time as the southern Atlantic Ocean basin?

In a 2010 article “fact check: eastern u.s. earthquake risk” by chris mould, the author provides as evidence the following statement by the united states geological survey: “although earthquakes may be less frequent in the eastern u.s., … urban areas in the east could face bigger losses because the shaking would affect much larger areas than similar quakes in the west. in addition, most homes and buildings in the east are not designed to withstand earthquakes.”this statement directly relates to which of the following concepts? a. vulnerabilityb. hazardc. riskd. severity

Ineed to draw a simple map of oil where can be found on the map.

What tests were able to determine when continental crust was formed?