The aim of this study was to assess the temporal evolution of the psychological impact of the COVID-19 crisis and lockdown from two surveys carried out in Spain with a time difference of about one month. Symptoms of depression, anxiety and stress, and the psychological impact of the situation were longitudinally analyzed using the Depression Anxiety and Stress Scale (DASS-21) and the Impact of Event Scale (IES) respectively. The Brief Resilient Coping Scale (BRCS) and the Mini-Social Phobia

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... ntory (Mini-SPIN) were also employed to evaluate resilience and social anxiety. There was a total of 4,724 responses from both surveys. Symptomatic scores of anxiety, depression and stress were exhibited by 37.22%, 46.42% and 49.66% of the second survey respondents, showing a significant increase compared to the first survey (32.45%, 44.11% and 37.01%, respectively). There was no significant longitudinal change of the IES scores, with 48.30% of the second survey participants showing moderate to severe impact of the confinement. Low resilience was shown by 40.5% of the respondents, and high social anxiety by 34.8%. Constant news consumption about COVID-19 was found to be positively associated with symptomatic scores in the different scales. On the other hand, daily physical activity was found to be negatively associated with DASS-21 scores. Results indicate that people with social anxiety might be especially vulnerable to the development of other mental disorders after the relaxation of the confinement measures.