A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness.

Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide.

Occurring about 2.6 days after perigee (on October 19, 1930, at 7:40 UTC), the Moon's apparent diameter was larger.

[2] Totality was visible from Niuafoʻou in Tonga, Chile, and a tiny part of Santa Cruz Province, Argentina.

A partial eclipse was visible for parts of Australia, Oceania, Antarctica, and southern South America.

Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee).