- Type:
- Earthquake
- Date:
- October 25, 1734 CE
- Location:
- Portsmouth
- Magnitude:
- 4.09 Mw
- Depth:
- 20 km
Cross-catalog records
This event is recorded in 2 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- AHEAD: Mw 4.09
- EMEC_2021: Mw 4.2
Other earthquake records of 1734 CE
- United Kingdom, Ireland
- Iceland, Southern Lowland
- Austria · Mw 3.93
- North Atlantic Ocean and Iceland · Mw 7.39
- Romania · Mw 5.2
- United Kingdom and adjacent waters · Mw 4.2
Source: Albini, P., Locati, M., Rovida, A. & Stucchi, M. (2013): European Archive of Historical Earthquake Data (AHEAD), INGV, doi:10.6092/ingv.it-ahead · License: CC BY 4.0 · institutional record ↗
Frequently asked questions
- When did 1734 Portsmouth earthquake (Mw 4.1) (1734 CE) happen?
- October 25, 1734 CE.
- Where does this information come from?
- This record comes from Albini, P., Locati, M., Rovida, A. & Stucchi, M. (2013): European Archive of Historical Earthquake Data (AHEAD), INGV, doi:10.6092/ingv.it-ahead; it was not hand-authored and is stored together with its source.