A magnitude ML 1.0 earthquake occured in region: 4 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7990, 13.1390 at 6 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 | 4 | 4957 | 4957 |
Castelsantangelo sul Nera | MC | 11 | 281 | 5238 |
Preci | PG | 12 | 724 | 5962 |
Arquata del Tronto | AP | 13 | 1178 | 7140 |
Cascia | PG | 14 | 3217 | 10357 |
Accumoli | RI | 15 | 667 | 11024 |
Visso | MC | 15 | 1107 | 12131 |
Ussita | MC | 16 | 444 | 12575 |
Montegallo | AP | 17 | 523 | 13098 |
Cerreto di Spoleto | PG | 18 | 1075 | 14173 |
Montemonaco | AP | 19 | 604 | 14777 |
Poggiodomo | PG | 19 | 117 | 14894 |
Sellano | PG | 20 | 1079 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-10-31 15:15:54 |
42.7993 | 13.1387 | 6 | 2021-10-31 15:22:22 |
Sala Sismica INGV-Roma | 97114021 |
Field | Value |
---|---|
Time (UTC) | 2021-10-31 15:15:54 ± 0.13 |
Latitude | 42.7993 ± 0.0036 |
Longitude | 13.1387 ± 0.0061 |
Depth (km) | 6 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 97114021 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 508 |
Semi-minor axis of confidence ellipse (meter) | 124 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 89 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 88 |
Number of associated phases, regardless of their use for origin computation | 36 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.26 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.71316 |
Number of stations at which the event was observed | 26 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.1 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 97114021 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-31 15:22:22 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MSSA.HHZ. | 2021-10-31T15:17:36.20 | 3.0 | undecidable | manual | Sg | 11.28 | 0 | |||
IV.TDS.HHZ. | 2021-10-31T15:17:29.15 | 3.0 | undecidable | manual | Sg | 8.81 | 0 | |||
IV.PLMA.HHZ. | 2021-10-31T15:17:27.88 | 3.0 | undecidable | manual | Sg | 11.45 | 0 | |||
IV.BOZZ.EHZ. | 2021-10-31T15:17:20.57 | 3.0 | undecidable | manual | Sn | -4.9 | 0 | |||
IV.SIRI.HNZ. | 2021-10-31T15:17:05.05 | 3.0 | undecidable | manual | Sg | 0.18 | 0 | |||
IV.BRSN.HNZ. | 2021-10-31T15:16:59.89 | 3.0 | undecidable | manual | Sg | 6.69 | 0 | |||
CH.BERNI.HHZ. | 2021-10-31T15:16:59.17 | 3.0 | undecidable | manual | Pn | 0.86 | 0 | |||
RF.GEPF.HHZ. | 2021-10-31T15:16:55.00 | 3.0 | positive | manual | Pg | 8.09 | 0 | |||
IV.DGI.HHZ. | 2021-10-31T15:16:44.50 | 3.0 | undecidable | manual | Pg | 3.96 | 0 | |||
IV.MSSA.HHZ. | 2021-10-31T15:16:43.07 | 3.0 | undecidable | manual | Pn | 2.23 | 0 | |||
IV.ZEN8.EHZ. | 2021-10-31T15:16:41.61 | 3.0 | positive | manual | Pn | -4.08 | 0 | |||
IV.SBPO.HNZ. | 2021-10-31T15:16:41.78 | 3.0 | positive | manual | Pg | 3.82 | 0 | |||
IV.CET2.HHZ. | 2021-10-31T15:16:40.59 | 3.0 | undecidable | manual | Pg | 3.23 | 0 | |||
IX.RSF3.HHZ.02 | 2021-10-31T15:16:38.11 | 3.0 | undecidable | manual | Sn | -3.91 | 0 | |||
MN.TRI.HHZ. | 2021-10-31T15:16:33.67 | 3.0 | undecidable | manual | Pn | -5.4 | 0 | |||
IV.ARVD.HHZ. | 2021-10-31T15:16:19.87 | 3.0 | undecidable | manual | P | 79.1652 | 1.115 | 0 | ||
IV.ARCI.HHZ. | 2021-10-31T15:16:13.02 | 3.0 | positive | manual | Pn | -1.1 | 0 | |||
IV.MF5.EHZ. | 2021-10-31T15:16:06.63 | 0.3 | undecidable | manual | S | 51 | 33.4443 | 100 | 0.38 | 67 |
IV.CSP1.EHZ. | 2021-10-31T15:16:05.79 | 0.3 | undecidable | manual | S | 9 | 32.8449 | 100 | -0.28 | 69 |
IV.CESI.HHZ. | 2021-10-31T15:16:05.13 | 0.3 | undecidable | manual | S | 320 | 29.748 | 102 | 0.15 | 71 |
IV.LNSS.HHZ. | 2021-10-31T15:16:03.12 | 0.6 | undecidable | manual | S | 200 | 23.2545 | 105 | 0.33 | 46 |
IV.SMA1.EHZ. | 2021-10-31T15:16:03.25 | 0.1 | undecidable | manual | S | 139 | 24.6531 | 104 | -0.02 | 98 |
IV.FDMO.HHZ. | 2021-10-31T15:16:03.92 | 0.1 | undecidable | manual | S | 351 | 26.6511 | 103 | -0.02 | 98 |
IV.GAVE.EHZ. | 2021-10-31T15:16:03.33 | 0.3 | undecidable | manual | S | 239 | 23.1546 | 105 | 0.55 | 65 |
IV.MF5.EHZ. | 2021-10-31T15:16:01.32 | 1.0 | undecidable | manual | P | 51 | 33.4443 | 100 | 0.05 | 24 |
IV.CESI.HHZ. | 2021-10-31T15:16:00.33 | 0.6 | negative | manual | P | 320 | 29.748 | 102 | -0.21 | 47 |
IV.CSP1.EHZ. | 2021-10-31T15:16:00.71 | 1.0 | positive | manual | P | 9 | 32.8449 | 100 | -0.45 | 22 |
IV.MC2.EHZ. | 2021-10-31T15:16:00.08 | 0.3 | undecidable | manual | S | 18 | 13.0758 | 115 | 0.61 | 65 |
IV.FDMO.HHZ. | 2021-10-31T15:15:59.86 | 0.6 | negative | manual | P | 351 | 26.6511 | 103 | -0.08 | 48 |
IV.LNSS.HHZ. | 2021-10-31T15:15:59.20 | 0.1 | undecidable | manual | P | 200 | 23.2545 | 105 | -0.07 | 97 |
IV.SMA1.EHZ. | 2021-10-31T15:15:59.33 | 0.1 | undecidable | manual | P | 139 | 24.6531 | 104 | -0.22 | 94 |
IV.GAVE.EHZ. | 2021-10-31T15:15:58.77 | 0.6 | positive | manual | P | 239 | 23.1546 | 105 | -0.5 | 44 |
IV.MC2.EHZ. | 2021-10-31T15:15:57.34 | 0.1 | positive | manual | P | 18 | 13.0758 | 115 | -0.01 | 100 |
IV.NRCA.HNZ. | 2021-10-31T15:15:56.82 | 0.1 | undecidable | manual | S | 332 | 4.2957 | 145 | -0.22 | 97 |
IV.NRCA.HNZ. | 2021-10-31T15:15:55.83 | 0.3 | negative | manual | P | 332 | 4.2957 | 145 | -0.12 | 74 |
IV.POFI.HHZ. | 2021-10-31T15:15:54.44 | 3.0 | undecidable | manual | P | -2.74 | 0 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHN. | ML:1.0 | 0.00006884999999999999 | 1.62 | AML | other | m | 2021-10-31T15:16:04.01 |
IV.LNSS.HHE. | ML:1.0 | 0.0000766 | 0.12 | AML | other | m | 2021-10-31T15:16:04.07 |
IV.GAVE.EHN. | ML:1.1 | 0.00008085 | 0.88 | AML | other | m | 2021-10-31T15:16:04.85 |
IV.FDMO.HHE. | ML:0.8 | 0.000037699999999999995 | 1.26 | AML | other | m | 2021-10-31T15:16:04.35 |
IV.FDMO.HHN. | ML:0.8 | 0.00004025 | 0.54 | AML | other | m | 2021-10-31T15:16:05.28 |
IV.SMA1.EHN. | ML:0.8 | 0.0000395 | 0.88 | AML | other | m | 2021-10-31T15:16:05.78 |
IV.GAVE.EHE. | ML:1.1 | 0.00008505000000000001 | 0.16 | AML | other | m | 2021-10-31T15:16:05.97 |
IV.SMA1.EHE. | ML:0.9 | 0.0000504 | 0.22 | AML | other | m | 2021-10-31T15:16:06.61 |