A magnitude ML 1.3 earthquake occured in region: 3 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.8120, 13.1250 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 |
---|---|---|---|---|
Norcia | PG | 3 | 4957 | 4957 |
Castelsantangelo sul Nera | MC | 10 | 281 | 5238 |
Preci | PG | 10 | 724 | 5962 |
Visso | MC | 14 | 1107 | 7069 |
Cascia | PG | 14 | 3217 | 10286 |
Arquata del Tronto | AP | 15 | 1178 | 11464 |
Ussita | MC | 15 | 444 | 11908 |
Accumoli | RI | 16 | 667 | 12575 |
Cerreto di Spoleto | PG | 17 | 1075 | 13650 |
Montegallo | AP | 17 | 523 | 14173 |
Sellano | PG | 18 | 1079 | 15252 |
Poggiodomo | PG | 19 | 117 | 15369 |
Montemonaco | AP | 19 | 604 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-04-20 08:56:37 |
42.8123 | 13.1248 | 10 | 2021-04-20 09:28:18 |
Sala Sismica INGV-Roma | 89289511 |
Field | Value |
---|---|
Time (UTC) | 2021-04-20 08:56:37 ± 0.06 |
Latitude | 42.8123 ± 0.0027 |
Longitude | 13.1248 ± 0.0049 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89289511 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 409 |
Semi-minor axis of confidence ellipse (meter) | 79 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 260 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 410.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 85 |
Number of associated phases, regardless of their use for origin computation | 28 |
Number of defining phases | 24 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.28509 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 89289511 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-20 09:28:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.EL6.EHZ. | 2021-04-20T08:56:56.91 | 3.0 | undecidable | manual | S | 0.11 | 0 | |||
IV.EL6.EHZ. | 2021-04-20T08:56:48.43 | 3.0 | positive | manual | P | -0.04 | 0 | |||
IV.CSP1.EHZ. | 2021-04-20T08:56:48.92 | 0.1 | undecidable | manual | S | 12 | 31.6461 | 50 | 0.11 | 96 |
IV.SMA1.EHZ. | 2021-04-20T08:56:47.24 | 0.3 | undecidable | manual | S | 140 | 26.4513 | 50 | -0.18 | 72 |
IV.MOMA.HHZ. | 2021-04-20T08:56:47.61 | 3.0 | negative | manual | P | 0.89 | 0 | |||
IV.CESI.HHZ. | 2021-04-20T08:56:47.76 | 0.3 | undecidable | manual | S | 320 | 27.8499 | 50 | -0.03 | 74 |
IV.GAVE.EHZ. | 2021-04-20T08:56:46.39 | 0.3 | undecidable | manual | S | 235 | 23.0547 | 113 | 0.02 | 75 |
IV.LNSS.HHZ. | 2021-04-20T08:56:46.87 | 0.6 | undecidable | manual | S | 197 | 24.2535 | 112 | 0.11 | 49 |
IV.MTRA.HNN. | 2021-04-20T08:56:46.08 | 0.3 | undecidable | manual | S | 106 | 22.9548 | 114 | -0.28 | 71 |
IV.FDMO.HHZ. | 2021-04-20T08:56:46.78 | 0.3 | undecidable | manual | S | 353 | 25.0527 | 112 | -0.24 | 71 |
IT.MTCL.HGZ. | 2021-04-20T08:56:45.99 | 0.1 | undecidable | manual | S | 333 | 22.5552 | 114 | -0.24 | 95 |
IV.MMO1.EHZ. | 2021-04-20T08:56:45.07 | 0.1 | undecidable | manual | S | 60 | 19.0698 | 118 | -0.06 | 99 |
IV.CSP1.EHZ. | 2021-04-20T08:56:44.14 | 0.1 | undecidable | manual | P | 12 | 31.6461 | 50 | 0.04 | 97 |
IV.FEMA.HNZ. | 2021-04-20T08:56:44.72 | 0.3 | undecidable | manual | S | 340 | 17.6712 | 119 | 0.01 | 75 |
IV.CESI.HHZ. | 2021-04-20T08:56:43.58 | 0.1 | positive | manual | P | 320 | 27.8499 | 50 | 0.07 | 98 |
IV.FDMO.HHZ. | 2021-04-20T08:56:43.01 | 0.1 | undecidable | manual | P | 353 | 25.0527 | 112 | -0.05 | 98 |
IV.MC2.EHZ. | 2021-04-20T08:56:43.65 | 0.3 | undecidable | manual | S | 25 | 12.1767 | 129 | 0.52 | 68 |
IV.LNSS.HHZ. | 2021-04-20T08:56:43.03 | 0.1 | undecidable | manual | P | 197 | 24.2535 | 112 | 0.12 | 97 |
IV.SMA1.EHZ. | 2021-04-20T08:56:43.23 | 0.1 | undecidable | manual | P | 140 | 26.4513 | 50 | -0.07 | 98 |
IV.MMO1.EHZ. | 2021-04-20T08:56:42.03 | 0.1 | undecidable | manual | P | 60 | 19.0698 | 118 | 0.06 | 99 |
IV.MTRA.HNN. | 2021-04-20T08:56:42.62 | 0.1 | undecidable | manual | P | 106 | 22.9548 | 114 | -0.06 | 99 |
IV.GAVE.EHZ. | 2021-04-20T08:56:42.80 | 0.1 | undecidable | manual | P | 235 | 23.0547 | 113 | 0.11 | 98 |
IV.MF5.EHZ. | 2021-04-20T08:56:42.92 | 3.0 | positive | manual | P | -1.4 | 0 | |||
IV.FEMA.HNZ. | 2021-04-20T08:56:42.33 | 0.3 | undecidable | manual | P | 340 | 17.6712 | 119 | 0.6 | 66 |
IT.MTCL.HGZ. | 2021-04-20T08:56:41.89 | 0.1 | undecidable | manual | P | 333 | 22.5552 | 114 | -0.71 | 83 |
IV.MC2.EHZ. | 2021-04-20T08:56:41.17 | 0.1 | negative | manual | P | 25 | 12.1767 | 129 | 0.35 | 95 |
IV.NRCA.HHN. | 2021-04-20T08:56:40.99 | 0.1 | undecidable | manual | S | 340 | 2.4975 | 166 | -0.25 | 98 |
IV.NRCA.HHN. | 2021-04-20T08:56:39.89 | 0.1 | undecidable | manual | P | 340 | 2.4975 | 166 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.GAVE.EHN. | ML:1.3 | 0.000133 | 1.16 | AML | other | m | 2021-04-20T08:56:47.09 |
IV.GAVE.EHE. | ML:1.4 | 0.00014399999999999998 | 0.18 | AML | other | m | 2021-04-20T08:56:47.11 |
IV.FDMO.HHN. | ML:1.1 | 0.00007515 | 0.32 | AML | other | m | 2021-04-20T08:56:47.19 |
IV.FDMO.HHE. | ML:1.0 | 0.00006345000000000001 | 1.26 | AML | other | m | 2021-04-20T08:56:47.65 |
IV.LNSS.HHE. | ML:1.4 | 0.00014050000000000003 | 0.16 | AML | other | m | 2021-04-20T08:56:47.61 |
IV.LNSS.HHN. | ML:1.5 | 0.000178 | 0.12 | AML | other | m | 2021-04-20T08:56:47.73 |
IV.CESI.HHE. | ML:1.3 | 0.0001145 | 0.46 | AML | other | m | 2021-04-20T08:56:48.28 |
IV.SMA1.EHE. | ML:1.1 | 0.00007195 | 0.36 | AML | other | m | 2021-04-20T08:56:48.26 |
IV.CESI.HHN. | ML:1.4 | 0.0001245 | 0.4 | AML | other | m | 2021-04-20T08:56:48.47 |
IV.CSP1.EHN. | ML:1.4 | 0.00011365 | 0.2 | AML | other | m | 2021-04-20T08:56:49.28 |
IV.CSP1.EHE. | ML:1.4 | 0.00010674999999999999 | 0.88 | AML | other | m | 2021-04-20T08:56:49.40 |
IV.SMA1.EHN. | ML:1.0 | 0.0000593 | 0.68 | AML | other | m | 2021-04-20T08:56:51.03 |
IV.MOMA.HHN. | ML:1.0 | 0.00003205 | 0.5 | AML | other | m | 2021-04-20T08:56:54.65 |
IV.MOMA.HHE. | ML:1.3 | 0.00005945 | 0.22 | AML | other | m | 2021-04-20T08:56:54.56 |