A magnitude ML 1.0 earthquake occured in region: 4 km W Preci (PG), on
and geographic coordinates (lat, lon) 42.8760, 12.9970 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 | 6 | 1079 | 1803 |
Cerreto di Spoleto | PG | 9 | 1075 | 2878 |
Visso | MC | 10 | 1107 | 3985 |
Norcia | PG | 12 | 4957 | 8942 |
Castelsantangelo sul Nera | MC | 13 | 281 | 9223 |
Monte Cavallo | MC | 13 | 145 | 9368 |
Ussita | MC | 14 | 444 | 9812 |
Vallo di Nera | PG | 16 | 364 | 10176 |
Cascia | PG | 17 | 3217 | 13393 |
Campello sul Clitunno | PG | 19 | 2442 | 15835 |
Poggiodomo | PG | 19 | 117 | 15952 |
Pieve Torina | MC | 19 | 1458 | 17410 |
Fiordimonte | MC | 20 | 202 | 17612 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-04-19 04:30:19 |
42.8755 | 12.9967 | 11 | 2021-04-19 04:44:09 |
Sala Sismica INGV-Roma | 89243091 |
Field | Value |
---|---|
Time (UTC) | 2021-04-19 04:30:19 ± 0.07 |
Latitude | 42.8755 ± 0.0036 |
Longitude | 12.9967 ± 0.0061 |
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 | 89243091 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 433 |
Semi-minor axis of confidence ellipse (meter) | 379 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 98 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 102 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.29857 |
Number of stations at which the event was observed | 16 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 89243091 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-19 04:44:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SELL.HHZ. | 2021-04-19T04:31:42.42 | 3.0 | negative | manual | Pg | 18.040001 | 0 | |||
IV.CRJA.HHZ. | 2021-04-19T04:31:30.14 | 3.0 | undecidable | manual | Pn | 1.11 | 0 | |||
IV.EUCT.HNZ. | 2021-04-19T04:31:26.10 | 3.0 | undecidable | manual | Sg | 0.95 | 0 | |||
IV.RMP.HHZ. | 2021-04-19T04:31:06.59 | 3.0 | undecidable | manual | Sg | 7.68 | 0 | |||
MN.TRI.HHZ. | 2021-04-19T04:31:01.09 | 3.0 | undecidable | manual | Sg | -3.71 | 0 | |||
GU.GRAM.HHZ. | 2021-04-19T04:30:59.43 | 3.0 | undecidable | manual | Sg | -3.63 | 0 | |||
IV.SARZ.HHZ. | 2021-04-19T04:30:48.62 | 3.0 | positive | manual | Pg | -0.1 | 0 | |||
IV.GIUL.HHZ. | 2021-04-19T04:30:35.77 | 3.0 | positive | manual | Pn | -2.21 | 0 | |||
IV.CSP1.EHZ. | 2021-04-19T04:30:30.03 | 0.3 | undecidable | manual | S | 35 | 29.3484 | 90 | 0.01 | 73 |
IV.MSSA.HHZ. | 2021-04-19T04:30:30.22 | 3.0 | undecidable | manual | Pn | -9.99 | 0 | |||
IV.FDMO.HHZ. | 2021-04-19T04:30:27.14 | 0.3 | undecidable | manual | S | 22 | 19.2696 | 90 | -0.2 | 71 |
IV.GAVE.EHZ. | 2021-04-19T04:30:27.87 | 0.3 | undecidable | manual | S | 202 | 21.9669 | 90 | -0.19 | 71 |
IV.ASSB.HHZ. | 2021-04-19T04:30:26.22 | 0.3 | undecidable | manual | P | 304 | 33.1446 | 90 | -0.03 | 73 |
IV.CESI.HHZ. | 2021-04-19T04:30:26.45 | 0.3 | undecidable | manual | S | 332 | 16.1727 | 90 | -0.06 | 75 |
IV.MC2.EHZ. | 2021-04-19T04:30:26.62 | 0.3 | undecidable | manual | S | 76 | 16.1727 | 90 | 0.13 | 73 |
IV.CSP1.EHZ. | 2021-04-19T04:30:25.70 | 0.3 | undecidable | manual | P | 35 | 29.3484 | 90 | 0.03 | 74 |
IV.NRCA.HHZ. | 2021-04-19T04:30:24.72 | 0.3 | undecidable | manual | S | 116 | 10.6782 | 116 | -0.34 | 72 |
IV.FDMO.HHZ. | 2021-04-19T04:30:24.14 | 0.1 | undecidable | manual | P | 22 | 19.2696 | 90 | 0.01 | 100 |
IV.GAVE.EHZ. | 2021-04-19T04:30:24.83 | 0.3 | undecidable | manual | P | 202 | 21.9669 | 90 | 0.29 | 71 |
IV.MC2.EHZ. | 2021-04-19T04:30:23.92 | 0.3 | undecidable | manual | P | 76 | 16.1727 | 90 | 0.28 | 71 |
IV.CESI.HHZ. | 2021-04-19T04:30:23.73 | 0.3 | undecidable | manual | P | 332 | 16.1727 | 90 | 0.09 | 74 |
IV.NRCA.HHZ. | 2021-04-19T04:30:22.86 | 0.3 | undecidable | manual | P | 116 | 10.6782 | 116 | 0.05 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.3 | 0.0002175 | 0.18 | AML | other | m | 2021-04-19T04:30:24.82 |
IV.NRCA.HHE. | ML:1.3 | 0.00023449999999999998 | 0.18 | AML | other | m | 2021-04-19T04:30:25.07 |
IV.CESI.HHE. | ML:0.6 | 0.000034949999999999996 | 0.12 | AML | other | m | 2021-04-19T04:30:26.76 |
IV.CESI.HHN. | ML:0.8 | 0.0000619 | 0.24 | AML | other | m | 2021-04-19T04:30:26.71 |
IV.FDMO.HHN. | ML:0.7 | 0.00003515 | 0.28 | AML | other | m | 2021-04-19T04:30:27.51 |
IV.FDMO.HHE. | ML:1.0 | 0.00008245 | 0.8 | AML | other | m | 2021-04-19T04:30:27.36 |