- Type:
- Earthquake
- Date:
- April 23, 1909 CE
- Location:
- Portugal, Ribatejo, Benavente
- Magnitude:
- 6.6 Ms
- Deaths:
- 30
- Intensity (MMI):
- 10
Cross-catalog records
This event is recorded in 6 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- NOAA_SIGEQ: Ms 6.6
- EMEC_2021: Mw 3.84
- EMEC_2021: Mw 3.84
- EMEC_2021: Mw 4.93
- EMEC_2021: Mw 6
- EMEC_2021: Mw 4.38
Other earthquake records of 1909 CE
- Iran, Silakor · Mw 7.3 · 5,500 deaths
- Pakistan · M 7.2 · 231 deaths
- Morocco, Tetuan (Tetouan), Romars · 100 deaths
- Japan, Oomi · Ms 6.9 · 41 deaths
- France, Vernegues, Charleval, La Roque D'antheron · Ms 6.2 · 40 deaths
- China, Yunnan Province · Ms 6.5 · 21 deaths
Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K · License: U.S. Government Work · institutional record ↗
Frequently asked questions
- When did 1909 CE Earthquake — Portugal, Ribatejo, Benavente happen?
- April 23, 1909 CE.
- Where does this information come from?
- This record comes from NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K; it was not hand-authored and is stored together with its source.
- How many people died?
- Recorded estimate: 30. Historical death tolls vary by source.