8:28 p.m. Oct. 21. Reported on the following site as magnitude 4.8, depth 10 km, Panama/Costa Rica border region. The date given is Oct. 22, because it is reported in UTC time, which is 5 hours ahead.
Reported as 5.8 by another site. It felt more like 5.8, but it was shallow, so it's hard to tell.
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Update: 5.2 near Volcan