Analysis of the hypocenter for the Warffum 2025-05-18 earthquake

The Warffum event on 2025-05-18T20:57:23.7 with a local magnitude of 2.1 was detected by the KNMI network and located in near-real time with the Hypocenter method. This fast solution uses an average 1D model for the north of the Netherlands. In this report, an updated location and its uncertainty are derived. The location (6.5581E, 53.4019N) with its uncertainties are consistent with a known fault in the region on which the event occurred at a depth of 3.1 km (±1.3 km).