2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7498Arrival directions of cosmic rays with the energy E>4.10^{19} eV are analyzed by using data of the Yakutsk and AGASA (Japan) extensive air showers (EAS) arrays. It is supposed that the clusters can be formed as a result of decay of superheavy particles. The consequences of this supposition compare with experimental data.3 pages, 2 figures, the paper will publish: Nauka i Technika, Yakutsk, 2004,N2; v4: minor conceptual changesAstrophysicstext