The paper analyses ionospheric parameter dynamics during increased solar and seismic activities in Kamchatka. The investigation was based on the generalized multi-component model (GMCM) developed by the authors and numerical algorithms built on its basis. Data of the ionospheric critical frequency foF2 from Paratunka (52.97° N, 158.24° E, Kamchatka, IKIR FEB RAS), Moscow (55.5° N, 37.3° E) and Wakkanai (45.16° N, 141.75° E) stations were used in the analysis. Interplanetary environment and magnetosphere parameters ( https://omniweb.gsfc.nasa.gov/ ) and seismic catalogue data of Kamchatka ( https://sdis.emsd.ru/info/earthquakes/catalogue.php ) were also used in the consideration. According to the ionospheric station network data, the period of a moderate magnetic storm on 16 July 2017 was under analysis. The storm had typical dynamics of the Dst index. Based on Paratunka station data, the period of the moderate magnetic storm on 15 February 2023 was considered in detail. The storm occurred during the arrival of inhomogeneous accelerated fluxes from a CME and had some peculiarities both in Dst index dynamics and in ionospheric parameter variations. Moreover, the paper analyzes ionospheric parameters during earthquake (M ≥ 5) occurrences in Kamchatka (events for 2019–2023 were under analysis). On the basis of the introduced anomaly intensity measure, ionospheric anomalies, detected at the background of increased seismic activity, were compared with the anomalies observed during magnetic storms. It was noted that intensity of ionospheric anomalies during increased geomagnetic activity significantly exceeds that of the anomalies occurring during earthquakes in Kamchatka. At the same time, based on the investigation results, ionosphere reaction on seismic processes has more expressed character and can be accompanied by significant changes of data time variations and oscillation processes in the ionosphere.