The Marsquake catalogue from InSight, sols 0–478

The InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission began collecting high quality seismic data on Mars in February 2019. This manuscript documents the seismicity observed by SEIS, InSight's seismometer, from this time until end of March 2020. Within project, Marsquake Service (MQS) is responsible for prompt review all collected InSight, detection events that are likely to be origin, curation release catalogues. In first year collection, MQS have identified 465 we interpret regional teleseismic marsquakes. grouped into 2 different event families: low frequency family dominated energy at long period below 1 s, primarily include above 2.4 Hz. Event magnitudes, Mars-specific scales, range 1.3 3.7. A third class with very short duration but bursts been 712 times. These associated a local source driven thermal stresses. paper describes so far procedures under which operates; summarises content current catalogue; presents key features far, largest as examples.