A magnitude ML 0.9 earthquake occured in region: 4 km SE Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.1340, 12.6380 at 8 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 | 4 | 3389 | 3389 |
Assisi | PG | 7 | 28299 | 31688 |
Bastia Umbra | PG | 10 | 21874 | 53562 |
Valtopina | PG | 13 | 1398 | 54960 |
Nocera Umbra | PG | 13 | 5839 | 60799 |
Cannara | PG | 16 | 4305 | 65104 |
Spello | PG | 16 | 8645 | 73749 |
Gualdo Tadino | PG | 16 | 15208 | 88957 |
Bettona | PG | 18 | 4367 | 93324 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-09-18 01:10:27 |
43.1343 | 12.6382 | 8 | 2021-09-18 01:14:57 |
Sala Sismica INGV-Roma | 95563251 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 01:10:27 ± 0.17 |
Latitude | 43.1343 ± 0.0036 |
Longitude | 12.6382 ± 0.0062 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95563251 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 567 |
Semi-minor axis of confidence ellipse (meter) | 256 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 50 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 570.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 156 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24372 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 95563251 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 01:14:57 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RNI2.HHZ. | 2021-09-18T01:10:54.40 | 3.0 | undecidable | manual | Pg | 3.32 | 0 | |||
IV.RIBO.EHZ.01 | 2021-09-18T01:10:47.20 | 3.0 | negative | manual | Pn | -0.12 | 0 | |||
IV.CESI.HHZ. | 2021-09-18T01:10:36.62 | 0.1 | undecidable | manual | S | 124 | 25.9518 | 106 | -0.06 | 96 |
IV.MML1.EHZ. | 2021-09-18T01:10:36.98 | 0.1 | undecidable | manual | S | 95 | 27.0507 | 106 | -0.09 | 95 |
IV.MML1.EHZ. | 2021-09-18T01:10:33.28 | 0.1 | undecidable | manual | P | 95 | 27.0507 | 106 | 0.34 | 90 |
IV.MURB.HHZ. | 2021-09-18T01:10:33.88 | 0.1 | undecidable | manual | S | 327 | 16.9719 | 114 | 0.13 | 96 |
IV.CESI.HHZ. | 2021-09-18T01:10:32.63 | 0.1 | undecidable | manual | P | 124 | 25.9518 | 106 | -0.09 | 96 |
IV.ASSB.HHZ. | 2021-09-18T01:10:31.84 | 0.1 | undecidable | manual | S | 171 | 10.2786 | 126 | 0.1 | 98 |
IV.MURB.HHZ. | 2021-09-18T01:10:30.66 | 0.6 | positive | manual | P | 327 | 16.9719 | 114 | -0.37 | 46 |
IV.ATCC.EHZ. | 2021-09-18T01:10:30.55 | 0.1 | undecidable | manual | S | 1 | 5.5944 | 143 | -0.03 | 100 |
IV.ASSB.HHZ. | 2021-09-18T01:10:29.79 | 0.1 | negative | manual | P | 171 | 10.2786 | 126 | -0.08 | 98 |
IV.ATCC.EHZ. | 2021-09-18T01:10:29.11 | 1.0 | undecidable | manual | P | 1 | 5.5944 | 143 | -0.09 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASSB.HHE. | ML:0.7 | 0.00006984999999999999 | 1.04 | AML | other | m | 2021-09-18T01:10:31.09 |
IV.ASSB.HHN. | ML:0.8 | 0.00008049999999999999 | 0.16 | AML | other | m | 2021-09-18T01:10:31.86 |
IV.MURB.HHN. | ML:1.0 | 0.00009545 | 0.32 | AML | other | m | 2021-09-18T01:10:34.71 |
IV.MURB.HHE. | ML:1.2 | 0.00013800000000000002 | 0.18 | AML | other | m | 2021-09-18T01:10:34.63 |