A magnitude ML 0.9 earthquake occured in region: 2 km S Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.1420, 12.6060 at 9 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
Search earthquakes: Any within 30 km radius
The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Valfabbrica | PG | 2 | 3389 | 3389 |
Assisi | PG | 8 | 28299 | 31688 |
Bastia Umbra | PG | 9 | 21874 | 53562 |
Valtopina | PG | 15 | 1398 | 54960 |
Nocera Umbra | PG | 15 | 5839 | 60799 |
Cannara | PG | 16 | 4305 | 65104 |
Bettona | PG | 17 | 4367 | 69471 |
Spello | PG | 17 | 8645 | 78116 |
Gualdo Tadino | PG | 18 | 15208 | 93324 |
Perugia | PG | 18 | 166134 | 259458 |
Torgiano | PG | 19 | 6725 | 266183 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-04-09 09:17:26 |
43.1418 | 12.6058 | 9 | 2021-04-09 09:32:35 |
Sala Sismica INGV-Roma | 88936081 |
Field | Value |
---|---|
Time (UTC) | 2021-04-09 09:17:26 ± 0.13 |
Latitude | 43.1418 ± 0.0027 |
Longitude | 12.6058 ± 0.0099 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88936081 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 790 |
Semi-minor axis of confidence ellipse (meter) | 293 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 71 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 790.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 175 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.08 |
Epicentral distance of station closest to the epicenter (degree) | 0.05036 |
Epicentral distance of station farthest from the epicenter (degree) | 0.13490 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 88936081 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-09 09:32:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASSB.HHZ. | 2021-04-09T09:17:32.05 | 0.1 | undecidable | manual | S | 159 | 11.7771 | 126 | 0.03 | 100 |
IV.MURB.HHZ. | 2021-04-09T09:17:32.97 | 0.3 | undecidable | manual | S | 334 | 14.9739 | 120 | 0.03 | 75 |
IV.ATCC.EHZ. | 2021-04-09T09:17:30.46 | 0.3 | undecidable | manual | S | 30 | 5.5944 | 148 | -0.06 | 75 |
IV.MURB.HHZ. | 2021-04-09T09:17:30.37 | 0.1 | undecidable | manual | P | 334 | 14.9739 | 120 | -0.03 | 99 |
IV.ATCC.EHZ. | 2021-04-09T09:17:29.08 | 0.1 | undecidable | manual | P | 30 | 5.5944 | 148 | 0.08 | 100 |
IV.ASSB.HHZ. | 2021-04-09T09:17:29.83 | 0.1 | negative | manual | P | 159 | 11.7771 | 126 | -0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ATCC.EHN. | ML:1.1 | 0.000217 | 0.34 | AML | other | m | 2021-04-09T09:17:31.20 |
IV.ATCC.EHE. | ML:1.1 | 0.00023299999999999997 | 0.42 | AML | other | m | 2021-04-09T09:17:31.70 |
IV.ASSB.HHN. | ML:0.8 | 0.00007255 | 0.72 | AML | other | m | 2021-04-09T09:17:32.65 |
IV.ASSB.HHE. | ML:0.7 | 0.0000618 | 0.12 | AML | other | m | 2021-04-09T09:17:32.33 |
IV.MURB.HHN. | ML:1.0 | 0.000089998335 | 1.1008 | AML | other | m | 2021-04-09T09:17:33.35 |
IV.MURB.HHE. | ML:1.0 | 0.000097875585 | 0.2048 | AML | other | m | 2021-04-09T09:17:33.25 |