What is the conventional archaeological date of The Thera Eruption (Santorini, Greece), and what alternative dates have been proposed?

Conventional date: There is no agreed date. Radiocarbon studies give ranges from about 1627–1600 BC to the mid-1500s BC. Dates from archaeology and Egypt's history have long pointed to the 1500s BC. Alternative proposals: Contested: Friedrich and colleagues (2006): The late 1600s BC: The 2006 team says its tree gives 1627–1600 BC. They note this is about a century earlier than the date from the usual Egyptian timeline. Contested: Pearson and colleagues (2023): The mid-1500s BC: The 2023 team says the Therasia shrub raises the odds of a date in the middle of the 1500s BC. They say this fits some ice-core markers from volcanoes. Contested: Manning (2024): A second look at the shrub: Manning reran the 2023 numbers with extra limits he thinks are reasonable. His range is the late 17th to early 16th centuries BC. Interpretation: Bruins and van der Plicht (2025): Before Ahmose: The authors say the eruption came before Ahmose took the throne. He was the first king of Egypt's 18th Dynasty. Open question: Which century? Kutschera says no agreement has been reached between the archaeology and the science. The sources on this page do not settle it.

What has been measured at The Thera Eruption (Santorini, Greece) in peer-reviewed studies?

A tree buried alive: On Santorini, ash and pumice from the eruption buried an olive tree where it stood. Friedrich and colleagues (2006) dated its rings by radiocarbon. They placed the eruption between 1627 and 1600 BC, with 95.4% probability. A second olive: In 2023, Pearson and colleagues dated a burnt olive shrub. It was found under the same eruption layers on nearby Therasia. It came out slightly younger than the 2006 tree. New lab data: A Groningen team (2026) made about 90 yearly radiocarbon readings covering 1660 to 1507 BCE. They found no strong sign of sudden jumps in radiocarbon in that time. They did find small differences between labs. Egyptian objects: Bruins and van der Plicht (2025) dated objects from Egypt's 17th and early 18th Dynasties. They include a mudbrick from Ahmose's temple at Abydos and a linen burial cloth. A 100-year gap: Kutschera (2020) says science methods have tended to favor the 1600s BC. Archaeology has tended to favor the 1500s BC. The gap has been about 100 years. Thera, now called Santorini, is a Greek island in the Aegean Sea. In the Bronze Age it had a huge volcanic eruption. The eruption is a key time marker for that age. But experts still argue about which century it happened in.

What are the stone types, heaviest block masses, and quarry transport distances at The Thera Eruption (Santorini, Greece)?

These are not reported in the sources cited on this page.

Sites › Europe › The Thera Eruption (Santorini, Greece)

The Thera Eruption (Santorini, Greece)

Excavated Bronze Age town at Akrotiri, Santorini. Image: Norbert Nagel, Wikimedia Commons, CC BY-SA 3.0. Resized; not otherwise altered. All credits.

📍 Where It Is Santorini (Thera), Aegean Sea 36.3517°, 25.4036°

🏛️ Mainstream Date No agreed date: 1627–1600 BC to mid-1500s BC Excavated baseline

🧭 Leading Edge / Open Angle Contested: radiocarbon teams disagree on the century Debated or newly revised

🪨 Heaviest Stone & Quarry Stone weights not reported in our sources Compare all 87 sites →

30-SECOND TAKEAWAY

In Plain English — The 30-Second Takeaway

What It Is:

A huge Bronze Age volcanic eruption on the Greek island of Santorini.

What Everyone Agrees On (Measured Facts):

Two olive plants buried by the eruption have been radiocarbon dated.

🏛️ Mainstream Archaeology View:

Experts agree the eruption was huge. They disagree on its date.

🧭 Leading Edge View:

Teams argue for the late 1600s BC, the mid-1500s BC, or in between.

Site Story & Overview

Thera, now called Santorini, is a Greek island in the Aegean Sea. In the Bronze Age it had a huge volcanic eruption.

▸ Read Full Archaeological & Engineering Context

The eruption is a key time marker for that age. But experts still argue about which century it happened in.

✓ What Is Physically Measured on Site

Dated samples, laser scans, stone weights, and dug finds kept separate from opinion.

A tree buried alive: On Santorini, ash and pumice from the eruption buried an olive tree where it stood. Friedrich and colleagues (2006) dated its rings by radiocarbon. They placed the eruption between 1627 and 1600 BC, with 95.4% probability. [1]
A second olive: In 2023, Pearson and colleagues dated a burnt olive shrub. It was found under the same eruption layers on nearby Therasia. It came out slightly younger than the 2006 tree. [2]
New lab data: A Groningen team (2026) made about 90 yearly radiocarbon readings covering 1660 to 1507 BCE. They found no strong sign of sudden jumps in radiocarbon in that time. They did find small differences between labs. [6]
Egyptian objects: Bruins and van der Plicht (2025) dated objects from Egypt's 17th and early 18th Dynasties. They include a mudbrick from Ahmose's temple at Abydos and a linen burial cloth. [5]
A 100-year gap: Kutschera (2020) says science methods have tended to favor the 1600s BC. Archaeology has tended to favor the 1500s BC. The gap has been about 100 years. [4]

🏛️ Mainstream Archaeological View

Accepted timeline: There is no agreed date. Radiocarbon studies give ranges from about 1627–1600 BC to the mid-1500s BC. Dates from archaeology and Egypt's history have long pointed to the 1500s BC.
Stone & hardness: Not reported in the sources on this page. Mohs hardness: not reported in our sources.
Quarry distance & alignment: Stone source not reported in the sources on this page. Orientation: Not reported in the sources on this page.

🧭 Leading Edge Proposal & Open Questions

Contested: Friedrich and colleagues (2006): The late 1600s BC: The 2006 team says its tree gives 1627–1600 BC. They note this is about a century earlier than the date from the usual Egyptian timeline. [1]
Contested: Pearson and colleagues (2023): The mid-1500s BC: The 2023 team says the Therasia shrub raises the odds of a date in the middle of the 1500s BC. They say this fits some ice-core markers from volcanoes. [2]
Contested: Manning (2024): A second look at the shrub: Manning reran the 2023 numbers with extra limits he thinks are reasonable. His range is the late 17th to early 16th centuries BC. [3]
Interpretation: Bruins and van der Plicht (2025): Before Ahmose: The authors say the eruption came before Ahmose took the throne. He was the first king of Egypt's 18th Dynasty. [5]
Open question: Which century? Kutschera says no agreement has been reached between the archaeology and the science. The sources on this page do not settle it. [4]

Visiting: Akrotiri Archaeological Site (Santorini, Greece)

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Primary Academic Sources

▸ View All Cited Primary Sources & DOIs (6 papers)

Friedrich, W. L., Kromer, B., Friedrich, M., Heinemeier, J., Pfeiffer, T. & Talamo, S. (2006). Santorini Eruption Radiocarbon Dated to 1627-1600 B.C. Science 312(5773): 548. doi:10.1126/science.1125087 data
Pearson, C., Sbonias, K., Tzachili, I. & Heaton, T. J. (2023). Olive shrub buried on Therasia supports a mid-16th century BCE date for the Thera eruption. Scientific Reports 13: 6994. doi:10.1038/s41598-023-33696-w data
Manning, S. W. (2024). Problems of Dating Spread on Radiocarbon Calibration Curve Plateaus: The 1620–1540 BC Example and the Dating of the Therasia Olive Shrub Samples and Thera Volcanic Eruption. Radiocarbon 66(2): 341–370. doi:10.1017/rdc.2024.44 critique
Kutschera, W. (2020). On the enigma of dating the Minoan eruption of Santorini. PNAS 117(16): 8677–8679 (short overview). doi:10.1073/pnas.2004243117 background
Bruins, H. J. & van der Plicht, J. (2025). The Minoan Thera eruption predates Pharaoh Ahmose: Radiocarbon dating of Egyptian 17th to early 18th Dynasty museum objects. PLOS One 20(9): e0330702. doi:10.1371/journal.pone.0330702 data
Erdil, P., Kuitems, M., Scifo, A., Brown, D. & Dee, M. (2026). Investigating potential radiocarbon anomalies around the time of the Minoan eruption of Thera: A new high-resolution dataset from Groningen. Radiocarbon 68(2): 264–280. doi:10.1017/rdc.2025.10186 data

Dates and stone checks are summed up in plain English from the papers above. Measured facts stay separate from opinion. Methodology.