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The Vanavara trading post at dawn: low log cabins on a river bank, endless taiga behind, a pale northern sky.
SIBERIA30 JUN 1908 06:00

EP.05 · Codex entry

The Tunguska event

Siberia, 1908 · “The Second Sun”

On the morning of 30 June 1908, something from space exploded in the sky over central Siberia and flattened a forest larger than a city. The Short follows Darya, a fictional storekeeper at the Vanavara trading post, about 60 km away, through the minutes before and after. This is the history behind it.

Field facts

Date
Tuesday 30 June 1908 (17 June in the old Russian calendar), about 7:14 am12
Place
Over the Podkamennaya Tunguska basin, central Siberia, Russian Empire1
Nearest post
Vanavara, a trading post about 60 km south12
Forest flattened
About 2,150 km²13
Toll
At least three people, all Evenki, and many reindeer. The full toll is unknown.14
First to reach it
Leonid Kulik's expedition, 1927, 19 years later23

Real and fictional

Fictional Made up for the Short

  • Darya
    Darya

    A storekeeper at the trading post. She stands in for the people whose names we'll never know.

  • Kolya
    Kolya

    Her son, about eight.

Real Documented

  • A fireball brighter than the Sun, "as if a second sun appeared".1

  • A man at Vanavara who saw "the sky split in two" and felt as if his shirt was on fire.12

  • Windows blown out at the trading post, about 60 km away.12

  • About 2,150 km² of flattened forest.13

  • No crater when scientists finally arrived.3

The day, hour by hour

  1. 30 June · before 7 am

    A summer morning at the post

    Vanavara was a trading post on the Podkamennaya Tunguska river, where Russian merchants traded with Evenk reindeer herders.15

    Darya, smiling
    DARYA

    Furs in, flour and tea out. Nothing ever happens here!

  2. About 7:14 am

    A second sun

    Witnesses saw a fireball brighter than the Sun cross the sky. An Evenk witness said it was "as if a second sun appeared".1

    Kolya, worried
    KOLYA

    Mama, look! There's a second sun in the sky!

  3. Moments later

    The sky splits

    The object exploded several kilometres above the forest. At Vanavara, a man named Semenov, sitting on his porch at breakfast, said "the sky was split in two" and felt heat as if his shirt had caught fire.12

    Fire splitting the sky above the taiga behind the trading post.
    SIBERIA30 JUN 1908 07:14
  4. The blast wave

    Thrown off his feet

    Semenov was thrown several metres and the trading post's windows were blown out.12 Around the blast site, about 2,150 km² of forest was flattened.13

    Darya, afraid
    DARYA

    Away from the windows, Kolya! Run!

  5. That day

    The dead

    At least three people died, all Evenki, along with many reindeer. The area was remote and almost empty, and the full toll is unknown.14

  6. 1927

    No crater

    Nobody reached the site until Leonid Kulik's expedition, 19 years later. He expected a giant crater and found none: at the centre, trees still standing but stripped bare, and further out, trees flattened in a ring pointing away from it.23

Nobody reached the blast site until 1927, 19 years later.

They expected a giant crater. They found none.

Darya is fictional. The missing crater is real.

Every line, checked

Each line from the Short that makes a historical claim, beside what the record says.

On screen · opening

Siberia, 1908. Something from space is about to explode 60 km from this trading post.

The record

Vanavara lay about 60 km south of the blast centre.12 What exploded is still debated, but most scientists think it came from space.1

High
On screen · life
Darya, smiling
DARYA

Furs in, flour and tea out. Nothing ever happens here!

The record

Vanavara was founded around 1899 as a trading post where merchants traded goods with the Evenki. This comes from a local history source.5 Darya and her store are our invention.

Medium
On screen · the omen
Kolya, worried
KOLYA

Mama, look! There's a second sun in the sky!

The record

An Evenk witness described the fireball as "as if a second sun appeared".1

High
On screen · the event
SIBERIA30 JUN 1908 07:14
The record

The explosion happened at about 7:14 am local time on 30 June 1908.12

High
On screen · break
Kolya, afraid
KOLYA

Mama! The sky split in two!

The record

Semenov, at Vanavara, said "the sky was split in two". His account was recorded by Kulik in 1930.12

High
On screen · chaos

Windows shattered 60 km away. About 2,150 square km of forest fell flat.

The record

Windows were blown out at Vanavara, about 60 km away, and about 2,150 km² of forest was flattened.123

High
On screen · aftermath

At least three people died, all Evenki. Almost nobody lived nearby.

The record

At least three Evenk people are known to have died. Evenk custom made people reluctant to speak of the dead, so the true number is uncertain.14

High
On screen · fact card

They expected a giant crater. They found none.

The record

Kulik expected a large impact crater and found none.3

High

Open question

Open question

Why was there no crater?

Most scientists think a stony space rock about 50 to 60 metres wide exploded 5 to 10 km up, before it ever reached the ground. A comet has also been proposed, and the details are still debated.1

For nights afterwards, skies across Europe and Asia glowed so brightly that people could read a newspaper at midnight.12

Medium

Think about it

  1. Nobody reached the site for 19 years. What made it so hard, and what evidence might have been lost in that time?
  2. Kulik expected a crater because that is what impacts usually leave. How can expectations shape what an investigator looks for?
  3. Much of what we know comes from witnesses interviewed years later. How reliable are memories recorded long after an event?
  4. Why might an explosion this large have had so few known victims?

Glossary

Airburst
An explosion in the air, before an object reaches the ground.
Bolide
A very bright fireball made by a space rock entering the atmosphere.
Meteoroid
A small rocky or metal body travelling through space.
Evenki
An Indigenous people of Siberia, traditionally reindeer herders and hunters.
Taiga
The vast northern forest of larch, pine, spruce and birch.
Trading post
A settlement where goods are bought and traded, in Vanavara's case furs for flour, tea and tools.

Sources

  1. [1]
    Tunguska event
    Reference

    Overview of the blast, the witness accounts, the casualties and the competing explanations.

  2. [2]
    APS News: June 30, 1908, the Tunguska event
    Science news

    The American Physical Society's account of the blast, the Vanavara witness and the expeditions.

  3. [3]
    Linda Hall Library: Leonid Kulik
    Library

    The scientist who first reached the site, and what he found there.

  4. [4]
    The Evenki accounts of the 1908 Tunguska event (arXiv)
    Research paper

    A study of the Evenk witness testimony, including who died.

  5. [5]
    Vanavara: history
    Local history

    The founding of the trading post. A local source, so treat it with some caution.

Cite this page History's NPCs. "The Tunguska event (Siberia, 1908): The Second Sun." The Codex, 2026. https://historysnpcs.com/05-tunguska/