Farallon de Pajaros (United States): Recorded Eruptions and Historical Activity

Farallon de Pajaros is a stratovolcano located in the United States with an elevation of 337 meters and a tectonic setting characterized as a subduction zone with an unknown crustal thickness. According to the Smithsonian Global Volcanism Program, the volcano has a recorded history consisting of 14 confirmed eruptions spanning across the 19th and 20th centuries CE.

The official record documents historical activity beginning in the 19th century CE and continuing through the mid-20th century CE. The Volcanic Explosivity Index (VEI) values recorded for these events reach a largest known magnitude of 2.0.

Recorded Eruption Timeline and Centuries

The confirmed eruptions at Farallon de Pajaros are distributed across two centuries in the historical record:

  • 19th century CE: 3 confirmed eruptions, beginning with the earliest recorded event on January 7, 1864.
  • 20th century CE: 11 confirmed eruptions, concluding with the latest structured eruption starting on October 26, 1952, and ending on April 15, 1953.

While individual eruptions feature varying observation methods—ranging from reported observations to uncertain evidence classifications—all 14 events have associated VEI observations. The largest recorded VEI across the catalog is 2.0.

Frequently asked questions

How many confirmed eruptions does Farallon de Pajaros have?

Farallon de Pajaros has 14 confirmed eruptions recorded in the official Smithsonian Global Volcanism Program dataset.

When was the earliest recorded eruption at Farallon de Pajaros?

The earliest recorded eruption in the official dataset began on January 7, 1864.

What is the largest recorded VEI for eruptions at Farallon de Pajaros?

The largest recorded Volcanic Explosivity Index (VEI) for Farallon de Pajaros is 2.0.

Image credits

Sources and further context

Official datasets support the event-specific facts.