A magnitude ML 0.9 earthquake occured in region: 3 km W Preci (PG), on
and geographic coordinates (lat, lon) 42.8820, 12.9980 at 10 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 |
---|---|---|---|---|
Preci | PG | 3 | 724 | 724 |
Sellano | PG | 6 | 1079 | 1803 |
Visso | MC | 9 | 1107 | 2910 |
Cerreto di Spoleto | PG | 10 | 1075 | 3985 |
Monte Cavallo | MC | 13 | 145 | 4130 |
Norcia | PG | 13 | 4957 | 9087 |
Castelsantangelo sul Nera | MC | 13 | 281 | 9368 |
Ussita | MC | 14 | 444 | 9812 |
Vallo di Nera | PG | 17 | 364 | 10176 |
Cascia | PG | 18 | 3217 | 13393 |
Pieve Torina | MC | 19 | 1458 | 14851 |
Fiordimonte | MC | 19 | 202 | 15053 |
Campello sul Clitunno | PG | 19 | 2442 | 17495 |
Poggiodomo | PG | 20 | 117 | 17612 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-04-17 18:30:14 |
42.8818 | 12.9978 | 10 | 2021-04-17 18:48:32 |
Sala Sismica INGV-Roma | 89185971 |
Field | Value |
---|---|
Time (UTC) | 2021-04-17 18:30:14 ± 0.09 |
Latitude | 42.8818 ± 0.0045 |
Longitude | 12.9978 ± 0.0074 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89185971 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 490 |
Semi-minor axis of confidence ellipse (meter) | 466 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 131 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 490.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.09803 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25900 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 89185971 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-17 18:48:32 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-04-17T18:30:25.09 | 0.6 | undecidable | manual | S | 36 | 28.749 | 50 | -0.17 | 48 |
IV.MML1.HNE. | 2021-04-17T18:30:24.19 | 0.3 | undecidable | manual | S | 355 | 25.752 | 50 | -0.29 | 71 |
IV.GAVE.EHZ. | 2021-04-17T18:30:23.44 | 0.3 | undecidable | manual | S | 202 | 22.6551 | 114 | -0.14 | 73 |
IV.FDMO.HHZ. | 2021-04-17T18:30:22.05 | 0.6 | undecidable | manual | S | 23 | 18.6702 | 119 | -0.28 | 48 |
IV.CESI.HHZ. | 2021-04-17T18:30:21.38 | 0.6 | undecidable | manual | S | 331 | 15.5733 | 123 | -0.04 | 51 |
IV.MC2.EHE. | 2021-04-17T18:30:21.73 | 0.3 | undecidable | manual | S | 78 | 15.873 | 123 | 0.22 | 73 |
IV.NRCA.HHZ. | 2021-04-17T18:30:20.01 | 0.6 | undecidable | manual | S | 119 | 10.878 | 133 | -0.13 | 50 |
IV.CSP1.EHZ. | 2021-04-17T18:30:20.79 | 0.6 | undecidable | manual | P | 36 | 28.749 | 50 | -0.12 | 49 |
IV.MML1.HNE. | 2021-04-17T18:30:20.93 | 0.1 | undecidable | manual | P | 355 | 25.752 | 50 | 0.47 | 91 |
IV.GAVE.EHZ. | 2021-04-17T18:30:19.93 | 0.6 | undecidable | manual | P | 202 | 22.6551 | 114 | -0.01 | 50 |
IV.FDMO.HHZ. | 2021-04-17T18:30:19.23 | 0.6 | undecidable | manual | P | 23 | 18.6702 | 119 | 0.02 | 51 |
IV.NRCA.HHZ. | 2021-04-17T18:30:18.03 | 0.3 | positive | manual | P | 119 | 10.878 | 133 | 0.09 | 76 |
IV.CESI.HHZ. | 2021-04-17T18:30:18.87 | 0.6 | undecidable | manual | P | 331 | 15.5733 | 123 | 0.18 | 49 |
IV.MC2.EHE. | 2021-04-17T18:30:18.64 | 0.1 | undecidable | manual | P | 78 | 15.873 | 123 | -0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:0.6 | 0.00005126503 | 0.1408 | AML | other | m | 2021-04-17T18:30:20.10 |
IV.NRCA.HHE. | ML:0.5 | 0.00004124653 | 0.0768 | AML | other | m | 2021-04-17T18:30:20.31 |
IV.NRCA.HNE. | ML:0.8 | 0.00008670236300000001 | 0.6016 | AML | other | m | 2021-04-17T18:30:25.13 |
IV.NRCA.HNN. | ML:1.2 | 0.00018208995 | 0.7552 | AML | other | m | 2021-04-17T18:30:24.14 |
IV.CESI.HHE. | ML:0.3 | 0.000018259190000000002 | 1.2288 | AML | other | m | 2021-04-17T18:30:18.10 |
IV.CESI.HHN. | ML:0.5 | 0.000028926049999999997 | 0.3584 | AML | other | m | 2021-04-17T18:30:21.53 |
IV.CESI.HNE. | ML:1.1 | 0.00010995234999999999 | 0.4992 | AML | other | m | 2021-04-17T18:30:27.40 |
IV.CESI.HNN. | ML:1.0 | 0.00008453602 | 0.5248 | AML | other | m | 2021-04-17T18:30:24.22 |
IV.FDMO.HHE. | ML:0.6 | 0.00003203051 | 0.1024 | AML | other | m | 2021-04-17T18:30:22.36 |
IV.FDMO.HHN. | ML:0.6 | 0.00003459857 | 0.1408 | AML | other | m | 2021-04-17T18:30:22.46 |
IV.GAVE.EHE. | ML:0.8 | 0.0000451577175 | 0.1664 | AML | other | m | 2021-04-17T18:30:25.34 |
IV.GAVE.EHN. | ML:1.0 | 0.00006057731 | 0.1024 | AML | other | m | 2021-04-17T18:30:25.06 |
IV.GAVE.HNE. | ML:1.1 | 0.00008719853 | 0.64 | AML | other | m | 2021-04-17T18:30:27.39 |
IV.GAVE.HNN. | ML:1.6 | 0.0002495259 | 1.0496 | AML | other | m | 2021-04-17T18:30:29.02 |
IV.CSP1.EHE. | ML:1.2 | 0.00008705026 | 1.8432 | AML | other | m | 2021-04-17T18:30:22.75 |
IV.CSP1.EHN. | ML:1.3 | 0.000107754455 | 2.3808 | AML | other | m | 2021-04-17T18:30:25.27 |