Radio Meteor Observations in the World: Monthly Reports in April 2017 by The International Project for Radio Meteor Observation.
April Lyrids 2017
Although one of major meteor showers “April Lyrids” was present around 22nd/23rd April, there was no clear meteor activity in this year. Figure 1 was provided by 26 observing stations in nine countries.
The following graph displays the monitored result (using ONLY Japanese stations) in April. In Japan, there was also no unusual activity.