We present results of underreporting estimation for daily series of PCR+ or clinical diagnosis counts for Canarias. By May 2, 2020 the number of confirmed cases is 2213 and the reconstruction of our model gave 3054 cases. This means that there are 841 or 38% of non-reported cases with respect to the observed. Below you see the daily counts series (Fig.1) and the cummulative counts series (Fig. 2), observed versus estimated.