Tanzania vs Tonga: Number of significant volcanic eruptions

Tanzania

1 events

in 1967

Tonga

1 events

in 2022

Tanzania rank

6th

Tonga rank

6th

Number of significant volcanic eruptions over time

Tanzania
Tonga

How they compare

Tanzania currently reports 1 events against 1 events in Tonga, a difference of 0 events.

Tanzania ranks 6th and Tonga ranks 6th of 25 countries.

Individual pages

Number of significant volcanic eruptions in Tanzania
Number of significant volcanic eruptions in Tonga
Full country ranking

About this data

Indicator: Number of significant volcanic eruptions
Unit: events
Source: National Geophysical Data Center / World Data Service (2025) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 25 places, 619 data points, 1050–2024
Last refreshed: 07 August 2026

A significant eruption is classified as one that meets at least one of the following criteria: caused fatalities, caused moderate damage (approximately $1 million or more), with a Volcanic Explosivity Index (VEI) of 6 or larger, caused a tsunami, or was associated with a major earthquake.