Broadband Seismic Data from Askja Caldera, Iceland, August 2023 to August 2024

23 Guralp 6TD and Certimus seismometers recorded ~12 months of continuous broadband seismic data at 100 samples per second within and around the ~8km diameter Askja Caldera. The dataset, in standard miniseed format with accompanying XML dataless files, was collected by the University of Iceland and University of Cambridge to track microseismic activity and facilitate seismic imaging. Data quality is described as good, with both local earthquakes and teleseisms easily detected.

Use Cases

• Tracking microseismic activity associated with volcanic reinflation based on continuous seismic recordings.
• Seismic imaging beneath a caldera using body and surface wave tomography based on the broadband data.
• Characterizing geothermal areas near active volcanoes based on detected earthquake signals.
• Analyzing teleseismic events recorded by a dense local network of seismometers.

Strengths

• ~12 months of continuous recording from August 2023 to August 2024.
• Data from 23 seismometers deployed in and around the caldera.
• Data is in standard miniseed format with accompanying XML dataless files for instrument metadata.
• Seismometers were buried ~30cm below surface with dedicated power supplies, suggesting stable installation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

University of Iceland and University of Cambridge, archived by the British Geological Survey (BGS).

Collection Method

Data collected by 23 buried broadband seismometers with solar-powered battery supplies, installed on foot or by helicopter.

Time Range

August 2023 to August 2024

Freshness

Last updated 2026-04-09 08:26:56.475056; freshness should be verified.

Geography

Askja Caldera, Iceland