A magnitude ML 1.4 earthquake occured in region: 2 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.8070, 13.1140 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 |
---|---|---|---|---|
Norcia | PG | 2 | 4957 | 4957 |
Preci | PG | 10 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 10 | 281 | 5962 |
Cascia | PG | 13 | 3217 | 9179 |
Visso | MC | 14 | 1107 | 10286 |
Arquata del Tronto | AP | 15 | 1178 | 11464 |
Ussita | MC | 16 | 444 | 11908 |
Cerreto di Spoleto | PG | 16 | 1075 | 12983 |
Accumoli | RI | 17 | 667 | 13650 |
Sellano | PG | 18 | 1079 | 14729 |
Poggiodomo | PG | 18 | 117 | 14846 |
Montegallo | AP | 18 | 523 | 15369 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2021-02-21 21:45:34 |
42.8067 | 13.1142 | 11 | 2021-02-21 22:21:58 |
Sala Sismica INGV-Roma | 87363371 |
Field | Value |
---|---|
Time (UTC) | 2021-02-21 21:45:34 ± 0.04 |
Latitude | 42.8067 ± 0.0018 |
Longitude | 13.1142 ± 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 | 87363371 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 304 |
Semi-minor axis of confidence ellipse (meter) | 216 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 67 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 300.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 87 |
Number of associated phases, regardless of their use for origin computation | 33 |
Number of defining phases | 29 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34624 |
Number of stations at which the event was observed | 21 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 26 |
Type of magnitude | ML |
Reference to an origin | 87363371 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-21 22:21:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RM33.EHZ. | 2021-02-21T21:45:46.45 | 0.6 | undecidable | manual | S | 166 | 34.0437 | 50 | 0.1 | 48 |
IV.CSP1.EHZ. | 2021-02-21T21:45:45.93 | 0.3 | undecidable | manual | S | 13 | 32.4453 | 50 | -0.02 | 73 |
IV.EL6.EHZ. | 2021-02-21T21:45:45.23 | 3.0 | negative | manual | P | -0.22 | 0 | |||
IV.CESI.HHZ. | 2021-02-21T21:45:44.72 | 0.3 | undecidable | manual | S | 322 | 27.8499 | 50 | 0.02 | 74 |
IV.MNTT.EHZ. | 2021-02-21T21:45:44.62 | 3.0 | negative | manual | P | 0.71 | 0 | |||
IV.SMA1.EHZ. | 2021-02-21T21:45:44.11 | 0.3 | undecidable | manual | S | 137 | 26.5512 | 50 | -0.26 | 70 |
IV.TERO.HHZ. | 2021-02-21T21:45:43.12 | 3.0 | undecidable | manual | P | -0.26 | 0 | |||
IV.LNSS.HHZ. | 2021-02-21T21:45:43.48 | 0.3 | undecidable | manual | S | 195 | 23.3544 | 50 | -0.04 | 74 |
IV.T1299.EHE. | 2021-02-21T21:45:43.64 | 0.3 | undecidable | manual | S | 144 | 23.5542 | 50 | 0.09 | 73 |
IV.FDMO.HHZ. | 2021-02-21T21:45:43.77 | 0.3 | undecidable | manual | S | 355 | 25.5522 | 50 | -0.34 | 69 |
IV.ASSB.HHZ. | 2021-02-21T21:45:43.30 | 3.0 | positive | manual | P | -0.05 | 0 | |||
IV.GAVE.EHZ. | 2021-02-21T21:45:43.11 | 0.3 | undecidable | manual | S | 235 | 21.9669 | 50 | -0.03 | 74 |
IV.MTRA.EHZ. | 2021-02-21T21:45:43.68 | 0.3 | undecidable | manual | S | 103 | 23.6541 | 50 | 0.09 | 73 |
IV.CAMP.HHZ. | 2021-02-21T21:45:42.03 | 0.6 | negative | manual | P | 141 | 38.4282 | 50 | -0.1 | 47 |
IV.MMO1.EHZ. | 2021-02-21T21:45:42.35 | 0.3 | undecidable | manual | S | 59 | 20.1687 | 118 | -0.29 | 71 |
IV.GUMA.HHZ. | 2021-02-21T21:45:41.64 | 0.3 | positive | manual | P | 32 | 33.6441 | 50 | 0.26 | 69 |
IV.MC2.EHZ. | 2021-02-21T21:45:41.04 | 0.3 | undecidable | manual | S | 28 | 13.0758 | 129 | 0.43 | 69 |
IV.CSP1.EHZ. | 2021-02-21T21:45:41.15 | 0.1 | positive | manual | P | 13 | 32.4453 | 50 | -0.06 | 97 |
IV.MF5.EHZ. | 2021-02-21T21:45:41.88 | 0.6 | positive | manual | P | 54 | 34.5432 | 50 | 0.36 | 45 |
IV.RM33.EHZ. | 2021-02-21T21:45:41.26 | 0.6 | undecidable | manual | P | 166 | 34.0437 | 50 | -0.19 | 47 |
IV.CESI.HHZ. | 2021-02-21T21:45:40.56 | 0.1 | positive | manual | P | 322 | 27.8499 | 50 | 0.07 | 97 |
IV.FDMO.HHZ. | 2021-02-21T21:45:40.09 | 0.1 | positive | manual | P | 355 | 25.5522 | 50 | -0.05 | 98 |
IV.SMA1.EHZ. | 2021-02-21T21:45:40.30 | 0.6 | negative | manual | P | 137 | 26.5512 | 50 | 0 | 49 |
IV.GAVE.EHZ. | 2021-02-21T21:45:39.68 | 0.3 | undecidable | manual | P | 235 | 21.9669 | 50 | 0.09 | 73 |
IV.MTRA.EHZ. | 2021-02-21T21:45:39.76 | 0.3 | undecidable | manual | P | 103 | 23.6541 | 50 | -0.09 | 73 |
IV.LNSS.HHZ. | 2021-02-21T21:45:39.86 | 0.1 | positive | manual | P | 195 | 23.3544 | 50 | 0.05 | 98 |
IV.T1299.EHE. | 2021-02-21T21:45:39.99 | 0.1 | undecidable | manual | P | 144 | 23.5542 | 50 | 0.17 | 96 |
IT.MTCL.HGE. | 2021-02-21T21:45:39.64 | 0.3 | undecidable | manual | P | 336 | 22.755 | 50 | -0.07 | 74 |
IV.MMO1.EHZ. | 2021-02-21T21:45:39.15 | 0.3 | positive | manual | P | 59 | 20.1687 | 118 | -0.15 | 73 |
IV.NRCA.HNZ. | 2021-02-21T21:45:38.31 | 0.1 | undecidable | manual | S | 0 | 2.997 | 164 | -0.28 | 97 |
IV.FEMA.HNE. | 2021-02-21T21:45:38.95 | 0.1 | undecidable | manual | P | 343 | 18.0708 | 121 | 0.02 | 100 |
IV.MC2.EHZ. | 2021-02-21T21:45:38.33 | 0.1 | positive | manual | P | 28 | 13.0758 | 129 | 0.2 | 97 |
IV.NRCA.HNZ. | 2021-02-21T21:45:37.08 | 0.3 | undecidable | manual | P | 0 | 2.997 | 164 | 0.12 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:2.2 | 0.002615 | 0.14 | AML | other | m | 2021-02-21T21:45:38.45 |
IV.NRCA.HNN. | ML:2.2 | 0.0024249999999999996 | 0.16 | AML | other | m | 2021-02-21T21:45:38.46 |
IV.NRCA.HHE. | ML:2.0 | 0.0016549999999999998 | 0.1 | AML | other | m | 2021-02-21T21:45:39.01 |
IV.NRCA.HNE. | ML:2.0 | 0.001585 | 0.08 | AML | other | m | 2021-02-21T21:45:39.06 |
IV.FDMO.HHN. | ML:1.3 | 0.00011499999999999999 | 0.48 | AML | other | m | 2021-02-21T21:45:44.10 |
IV.LNSS.HHE. | ML:1.6 | 0.0002565 | 0.68 | AML | other | m | 2021-02-21T21:45:44.47 |
IV.MTRA.EHE. | ML:1.2 | 0.00009035 | 1 | AML | other | m | 2021-02-21T21:45:44.81 |
IV.MTRA.EHN. | ML:1.2 | 0.00010015 | 0.34 | AML | other | m | 2021-02-21T21:45:44.30 |
IV.GAVE.EHN. | ML:1.4 | 0.00015900000000000002 | 1.58 | AML | other | m | 2021-02-21T21:45:44.05 |
IV.LNSS.HHN. | ML:1.6 | 0.000266 | 0.14 | AML | other | m | 2021-02-21T21:45:44.84 |
IV.FDMO.HHE. | ML:1.2 | 0.00009334999999999999 | 1.22 | AML | other | m | 2021-02-21T21:45:44.34 |
IV.GAVE.EHE. | ML:1.5 | 0.00023099999999999998 | 0.18 | AML | other | m | 2021-02-21T21:45:44.98 |
IV.CESI.HHN. | ML:1.4 | 0.00014749999999999998 | 1.48 | AML | other | m | 2021-02-21T21:45:45.20 |
IV.CESI.HHE. | ML:1.2 | 0.00008199999999999999 | 0.24 | AML | other | m | 2021-02-21T21:45:45.37 |
IV.CSP1.EHN. | ML:1.6 | 0.00016465 | 0.54 | AML | other | m | 2021-02-21T21:45:46.13 |
IV.CSP1.EHE. | ML:1.6 | 0.00015525 | 0.42 | AML | other | m | 2021-02-21T21:45:46.59 |
IV.SMA1.EHN. | ML:1.3 | 0.00010920000000000001 | 1.44 | AML | other | m | 2021-02-21T21:45:46.19 |
IV.GUMA.HHN. | ML:1.6 | 0.00014800000000000002 | 1.06 | AML | other | m | 2021-02-21T21:45:46.46 |
IV.RM33.EHN. | ML:1.2 | 0.00005845 | 1 | AML | other | m | 2021-02-21T21:45:47.61 |
IV.RM33.EHE. | ML:1.0 | 0.00004615 | 0.14 | AML | other | m | 2021-02-21T21:45:47.75 |
IV.SMA1.EHE. | ML:1.4 | 0.000134 | 0.5 | AML | other | m | 2021-02-21T21:45:47.94 |
IV.TERO.HHN. | ML:1.1 | 0.00004215 | 0.62 | AML | other | m | 2021-02-21T21:45:51.12 |
IV.TERO.HHE. | ML:0.9 | 0.0000269 | 0.1 | AML | other | m | 2021-02-21T21:45:51.36 |
IV.GUMA.HHE. | ML:1.5 | 0.00013450000000000002 | 0.82 | AML | other | m | 2021-02-21T21:45:51.15 |
IV.EL6.EHE. | ML:1.4 | 0.0000489 | 0.64 | AML | other | m | 2021-02-21T21:45:54.80 |
IV.EL6.EHN. | ML:1.4 | 0.000052000000000000004 | 1.14 | AML | other | m | 2021-02-21T21:45:57.06 |