Which type of crater ? osm.org/node/12757140172, see osm.wiki/Tag:natural%3Dcrater

There's a description for "balloon tagging" : osm.wiki/Key:aeroway#Balloons

osm.org/way/1373320167

There's an outer osm.org/way/227647624 and an inner section, please check : osm.org/way/834317236/history

Most likely a volcano ? osm.org/node/359258391/history osm.wiki/Tag:natural%3Dcrater

Which kind of crater ? osm.org/way/293252784, see osm.wiki/Tag:natural%3Dcrater

Doesn't seem very "natural" osm.org/way/314049193, probably https://taginfo.openstreetmap.org/tags/historic=crash_site or crash_crater ? osm.wiki/Tag:natural%3Dcrater

Welche Art ? osm.org/node/1452292755, siehe osm.wiki/Tag:natural%3Dcrater

Shouldn't be a node osm.org/node/11700640827, correct tagging : osm.wiki/Tag%3Ageological%3Dvolcanic_caldera_rim

No English description found for osm.org/way/1112185745, see https://ceb.wikipedia.org/wiki/South_East_Crater

Should be an area ?