Hawaiian Type Volcano:
- Hawaiian type volcanoes are characterized by their low viscosity lava and frequent eruptions.
- These volcanoes are shield-shaped and have gentle slopes due to the fluidity of the lava.
- The eruptions are generally non-explosive and the lava flows smoothly down the sides of the volcano.
- The lava of Hawaiian type volcanoes is basaltic in nature, which means it has low silica content and high temperature.
- The lava flows can cover vast areas and create new landforms, such as lava tubes and lava lakes.

Strombolian Type Volcano:
- Strombolian type volcanoes are known for their frequent and moderate explosive eruptions.
- These volcanoes are characterized by their conical shape and steep slopes.
- The eruptions are caused by the build-up of gas bubbles in the magma, which explode and release tephra (fragments of volcanic rock) into the air.
- The tephra is usually ejected in the form of volcanic bombs or lapilli (small rock fragments).
- The lava of Strombolian type volcanoes is usually andesitic in nature, which means it has intermediate silica content and lower temperature compared to Hawaiian type volcanoes.
- The eruptions of Strombolian volcanoes can occur in regular intervals, typically every few minutes to hours.

Vulcanian Type Volcano:
- Vulcanian type volcanoes are characterized by their infrequent but highly explosive eruptions.
- These volcanoes have steep-sided profiles with a central vent.
- The eruptions are caused by the rapid release of gas and magma, resulting in explosive eruptions that produce ash clouds and pyroclastic flows.
- The pyroclastic flows are mixtures of hot gas, ash, and rock fragments that flow down the slopes of the volcano at high speeds.
- The lava of Vulcanian type volcanoes is usually andesitic to dacitic in nature, which means it has high silica content and lower temperature compared to Hawaiian type volcanoes.
- The eruptions of Vulcanian volcanoes can be extremely hazardous, posing risks to nearby communities and causing widespread damage.

In summary, Hawaiian type volcanoes have low viscosity lava and frequent non-explosive eruptions, Strombolian type volcanoes have moderate explosive eruptions at regular intervals, and Vulcanian type volcanoes have infrequent but highly explosive eruptions. Each type has distinct characteristics and poses different risks to the surrounding areas.