1425 Auckland, crater of Mount Eden

Eduardo Manchón, on June 2, said:

is a former volcano or a meteorite?

Daniel Meyer, on June 4, said:

It's a volcano as there are many on the North Island of New Zealand (as part of the Pacific Ring of Fire).

From wikipedia: The Auckland volcanic field on the North Island of New Zealand, has produced a diverse array of explosive craters, scoria cones, and lava flows. Currently dormant, the field is likely to erupt again with the next "hundreds to thousands of years", a very short timeframe in geologic terms. The field contains at least 40 volcanoes, most recently active about 600 years ago at Rangitoto, erupting 2.3 cubic kilometers of lava.