Sweep radius
100 km
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 1921-03-18T00:00:00+00:00 |
|---|---|
| end_utc | 1921-03-18T00:00:00+00:00 |
| lat | 46.200 |
| lon | -122.180 |
| n_obs | 0 |
| origin_utc | 1921-03-18T00:00:00+00:00 |
| last_fix_utc | 1921-03-18T00:00:00+00:00 |
| provisional | false |
| vnum | 321,050 |
| volcano_name | St. Helens |
| activity_type | Uncertain Eruption |
| uncertain | true |
| start_year | 1,921 |
| start_month | 3 |
| start_day | 18 |
| start_precision | day |
| bce | false |
| country | United States |
| region | North America Volcanic Regions |
| volcano_type | Stratovolcano |
| elevation_m | 2,549 |
| tectonic_setting | Subduction zone / Continental crust (> 25 km) |
| swept | true |
| alert_series | [] |
| window_hours_before | 336 |
| window_hours_after | 168 |
| total_sensor_hits | 0 |
Provenance
This slot's source list is not carried on the manifest row; open the dossier below.
Storage: dossier · event_storehouse/vol/20556.json