A magnitude ML 0.8 earthquake occured in region: 4 km W Preci (PG), on
and geographic coordinates (lat, lon) 42.8820, 12.9930 at 11 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 | 4 | 724 | 724 |
Sellano | PG | 5 | 1079 | 1803 |
Cerreto di Spoleto | PG | 9 | 1075 | 2878 |
Visso | MC | 10 | 1107 | 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 | 16 | 364 | 10176 |
Cascia | PG | 18 | 3217 | 13393 |
Pieve Torina | MC | 19 | 1458 | 14851 |
Campello sul Clitunno | PG | 19 | 2442 | 17293 |
Fiordimonte | MC | 19 | 202 | 17495 |
Poggiodomo | PG | 19 | 117 | 17612 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-04-11 09:33:11 |
42.882 | 12.9933 | 11 | 2021-04-11 09:46:44 |
Sala Sismica INGV-Roma | 88999091 |
Field | Value |
---|---|
Time (UTC) | 2021-04-11 09:33:11 ± 0.06 |
Latitude | 42.8820 ± 0.0027 |
Longitude | 12.9933 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88999091 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 332 |
Semi-minor axis of confidence ellipse (meter) | 301 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 316 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 131 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26080 |
Number of stations at which the event was observed | 19 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 88999091 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-11 09:46:44 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SARZ.HHZ. | 2021-04-11T09:34:59.75 | 3.0 | undecidable | manual | Sg | 17.200001 | 0 | |||
IV.EMSG.HHZ. | 2021-04-11T09:34:48.88 | 3.0 | undecidable | manual | Pg | 13.65 | 0 | |||
IV.EUCT.HNZ. | 2021-04-11T09:34:44.71 | 3.0 | undecidable | manual | Sn | 0.73 | 0 | |||
IV.GIZZ.HHZ. | 2021-04-11T09:34:32.08 | 3.0 | negative | manual | Pg | 5.79 | 0 | |||
IV.VOBA.EHZ. | 2021-04-11T09:34:31.29 | 3.0 | undecidable | manual | Sn | -4.5 | 0 | |||
IV.IACL.HHZ. | 2021-04-11T09:34:27.94 | 3.0 | undecidable | manual | Pg | 3.88 | 0 | |||
SI.BOSI.HHZ. | 2021-04-11T09:34:10.58 | 3.0 | negative | manual | Pg | 4.66 | 0 | |||
IV.SLCN.HHZ. | 2021-04-11T09:34:05.45 | 3.0 | undecidable | manual | Pn | -1.43 | 0 | |||
IV.MCI.EHZ. | 2021-04-11T09:33:44.78 | 3.0 | undecidable | manual | Pg | 0.88 | 0 | |||
IT.MCLF.HNZ. | 2021-04-11T09:33:41.86 | 3.0 | negative | manual | Pn | -4.3 | 0 | |||
IV.MCIV.CHZ. | 2021-04-11T09:33:40.09 | 3.0 | undecidable | manual | S | -1.71 | 0 | |||
IV.TRIF.CHZ. | 2021-04-11T09:33:34.48 | 3.0 | negative | manual | Pn | -1.6 | 0 | |||
IV.CSP1.EHZ. | 2021-04-11T09:33:21.88 | 0.3 | undecidable | manual | S | 36 | 28.9488 | 50 | 0.11 | 73 |
IV.MMO1.EHZ. | 2021-04-11T09:33:21.41 | 0.6 | undecidable | manual | S | 86 | 27.1506 | 50 | 0.11 | 49 |
IV.MML1.HNZ. | 2021-04-11T09:33:21.00 | 0.6 | undecidable | manual | S | 356 | 25.752 | 50 | 0.08 | 49 |
IV.GAVE.EHE. | 2021-04-11T09:33:20.07 | 0.6 | undecidable | manual | S | 201 | 22.5552 | 50 | 0 | 50 |
IV.MC2.EHZ. | 2021-04-11T09:33:18.34 | 0.6 | undecidable | manual | S | 78 | 16.2726 | 123 | 0.11 | 50 |
IV.FDMO.HHZ. | 2021-04-11T09:33:18.78 | 0.3 | undecidable | manual | S | 24 | 18.7701 | 120 | -0.2 | 73 |
IV.CESI.HHZ. | 2021-04-11T09:33:17.99 | 0.3 | undecidable | manual | S | 332 | 15.3735 | 125 | -0.01 | 76 |
IV.CSP1.EHZ. | 2021-04-11T09:33:17.36 | 0.6 | positive | manual | P | 36 | 28.9488 | 50 | -0.07 | 49 |
IV.MMO1.EHZ. | 2021-04-11T09:33:16.80 | 0.6 | undecidable | manual | P | 86 | 27.1506 | 50 | -0.36 | 46 |
IV.MML1.HNZ. | 2021-04-11T09:33:16.86 | 0.6 | undecidable | manual | P | 356 | 25.752 | 50 | -0.08 | 49 |
IV.GAVE.EHE. | 2021-04-11T09:33:16.41 | 0.1 | undecidable | manual | P | 201 | 22.5552 | 50 | -0.03 | 100 |
IV.FDMO.HHZ. | 2021-04-11T09:33:15.77 | 0.3 | undecidable | manual | P | 24 | 18.7701 | 120 | -0.05 | 75 |
IV.MC2.EHZ. | 2021-04-11T09:33:15.57 | 0.6 | undecidable | manual | P | 78 | 16.2726 | 123 | 0.18 | 49 |
IV.CESI.HHZ. | 2021-04-11T09:33:15.44 | 0.3 | undecidable | manual | P | 332 | 15.3735 | 125 | 0.19 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHN. | ML:0.8 | 0.0000518 | 0.14 | AML | other | m | 2021-04-11T09:33:19.08 |
IV.FDMO.HHE. | ML:0.8 | 0.000052256965 | 0.1024 | AML | other | m | 2021-04-11T09:33:18.97 |
IV.CESI.HHE. | ML:0.6 | 0.000037658844999999996 | 2.2208 | AML | other | m | 2021-04-11T09:33:19.42 |
IV.CESI.HHN. | ML:0.6 | 0.00003299802 | 0.3392 | AML | other | m | 2021-04-11T09:33:18.15 |
IV.CESI.HNE. | ML:0.9 | 0.00008220895000000001 | 1.2992 | AML | other | m | 2021-04-11T09:33:18.01 |
IV.CESI.HNN. | ML:1.2 | 0.00015304055 | 0.9024 | AML | other | m | 2021-04-11T09:33:18.50 |