How Good Is Your Geographic? [5]

[D-Type]

The asteroid impact on the Yucatan Peninsular in prehistoric times that led to the extinction of the dinosaurs has been estimated at magnitude 13.

[anfield5]

The asteroid impact on the Yucatan Peninsular in prehistoric times that led to the extinction of the dinosaurs has been estimated at magnitude 13.

But the question was for the highest RECORDED. There were not too many people around with measuring equipment in prehistoric times

[Grundo Farb]

9.1 South America.

[Rollo]

This is a football question.
The 1962 World Cup in Chile which should have had 8 venues only had 4 four because an earthquake ruined most of them 2 years earlier.

1960 Chile. I know nothing else.

[anfield5]

It was Chile 1960 well done Rollo, the magnitude wasn't 9.1 but 9.5

[Rollo]

What is the shortest river, which is named... in the world?

[Storm]

We had this question and it was like 2 feet or something...

[D-Type]

I would think this hinges on definition, such as where does a river start and finish and even what constitutes a river.
One of the shortest "proper" decent-sized rivers must be the Niagra.

[Rollo]

I would think this hinges on definition, such as where does a river start and finish and even what constitutes a river.

A river is a natural water course which has a source and ends at a mouth (a lake/mere, reservoir or ocean/sea)

[D-Type]

Where does a river finish and the sea begin? Taking a well-known example, does the Thames end at Gravesend or Southend? There must be some sort of geographers' agreement.