A magnitude ML 1.1 earthquake occured in region: 4 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.8080, 13.1360 at 11 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 10 | 281 | 5238 |
Preci | PG | 11 | 724 | 5962 |
Arquata del Tronto | AP | 14 | 1178 | 7140 |
Cascia | PG | 14 | 3217 | 10357 |
Visso | MC | 14 | 1107 | 11464 |
Ussita | MC | 15 | 444 | 11908 |
Accumoli | RI | 16 | 667 | 12575 |
Montegallo | AP | 17 | 523 | 13098 |
Cerreto di Spoleto | PG | 18 | 1075 | 14173 |
Montemonaco | AP | 19 | 604 | 14777 |
Sellano | PG | 19 | 1079 | 15856 |
Poggiodomo | PG | 20 | 117 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.1 | 2021-08-18 23:49:58 |
42.8077 | 13.1365 | 11 | 2021-12-29 11:12:28 |
Bollettino Sismico Italiano INGV | 95236301 |
Reviewed Rev100 |
ML 1.1 | 2021-08-18 23:49:58 |
42.8033 | 13.1343 | 10 | 2021-08-18 23:56:16 |
Sala Sismica INGV-Roma | 94350731 |
Field | Value |
---|---|
Time (UTC) | 2021-08-18 23:49:58 ± 0.04 |
Latitude | 42.8077 ± 0.0018 |
Longitude | 13.1365 ± 0.0025 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95236301 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 220 |
Semi-minor axis of confidence ellipse (meter) | 150 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 51 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 220.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 48 |
Number of associated phases, regardless of their use for origin computation | 42 |
Number of defining phases | 42 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.03058 |
Epicentral distance of station farthest from the epicenter (degree) | 0.52341 |
Number of stations at which the event was observed | 21 |
Number of stations from which data was used for origin computation | 21 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 94350731 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-18 23:56:16 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 95236301 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-09 13:45:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ATCC.EHZ. | 2021-08-18T23:50:16.55 | 0.6 | undecidable | manual | S | 316 | 58.0974 | 50 | 0.19 | 45 |
IV.EL6.EHZ. | 2021-08-18T23:50:16.37 | 0.6 | undecidable | manual | S | 357 | 57.8976 | 50 | 0.06 | 46 |
IV.ASSB.HHZ. | 2021-08-18T23:50:13.14 | 0.3 | undecidable | manual | S | 304 | 46.7199 | 50 | -0.18 | 69 |
IV.MOMA.HHZ. | 2021-08-18T23:50:13.52 | 0.3 | undecidable | manual | S | 270 | 46.1205 | 50 | 0.38 | 66 |
IV.TERO.HHZ. | 2021-08-18T23:50:12.19 | 0.3 | undecidable | manual | S | 118 | 43.2234 | 50 | -0.2 | 69 |
IV.MML1.EHZ. | 2021-08-18T23:50:10.52 | 0.3 | undecidable | manual | S | 339 | 36.4413 | 50 | -0.05 | 72 |
IV.RM33.EHZ. | 2021-08-18T23:50:09.80 | 0.3 | undecidable | manual | S | 169 | 33.744 | 50 | -0.05 | 72 |
IV.MF5.EHZ. | 2021-08-18T23:50:09.95 | 0.3 | undecidable | manual | S | 53 | 33.0447 | 50 | 0.3 | 69 |
IV.CSP1.EHZ. | 2021-08-18T23:50:09.46 | 0.3 | undecidable | manual | S | 10 | 32.0457 | 50 | 0.07 | 72 |
IV.EL6.EHZ. | 2021-08-18T23:50:08.79 | 0.3 | undecidable | manual | P | 357 | 57.8976 | 50 | 0.1 | 69 |
IV.CESI.HHZ. | 2021-08-18T23:50:08.31 | 0.3 | undecidable | manual | S | 319 | 28.8489 | 50 | -0.24 | 70 |
IV.ATCC.EHZ. | 2021-08-18T23:50:08.88 | 0.3 | undecidable | manual | P | 316 | 58.0974 | 50 | 0.17 | 68 |
IV.T1299.HNZ. | 2021-08-18T23:50:07.01 | 0.3 | undecidable | manual | S | 148 | 22.5552 | 50 | 0.13 | 73 |
IV.FDMO.HHZ. | 2021-08-18T23:50:07.32 | 0.3 | undecidable | manual | S | 351 | 25.6521 | 50 | -0.38 | 68 |
IV.SMA1.EHZ. | 2021-08-18T23:50:07.64 | 0.3 | undecidable | manual | S | 140 | 25.4523 | 50 | 0 | 74 |
IV.GAVE.EHZ. | 2021-08-18T23:50:07.09 | 0.3 | undecidable | manual | S | 237 | 23.5542 | 50 | -0.03 | 74 |
IV.MOMA.HHZ. | 2021-08-18T23:50:07.19 | 0.3 | undecidable | manual | P | 270 | 46.1205 | 50 | 0.32 | 67 |
IV.LNSS.HHZ. | 2021-08-18T23:50:07.27 | 0.3 | undecidable | manual | S | 199 | 24.0537 | 50 | 0.01 | 74 |
IV.TERO.HHZ. | 2021-08-18T23:50:06.25 | 0.3 | undecidable | manual | P | 118 | 43.2234 | 50 | -0.18 | 69 |
IT.MTCL.HGZ. | 2021-08-18T23:50:06.73 | 0.6 | undecidable | manual | S | 332 | 23.4543 | 50 | -0.38 | 46 |
IV.ASSB.HHZ. | 2021-08-18T23:50:06.84 | 0.3 | undecidable | manual | P | 304 | 46.7199 | 50 | -0.12 | 70 |
IV.MTRA.HNZ. | 2021-08-18T23:50:06.53 | 0.3 | undecidable | manual | S | 105 | 21.9669 | 50 | -0.16 | 72 |
IV.MMO1.EHZ. | 2021-08-18T23:50:05.68 | 0.3 | undecidable | manual | S | 57 | 18.5703 | 120 | -0.01 | 75 |
IV.MF5.EHZ. | 2021-08-18T23:50:05.07 | 0.6 | undecidable | manual | P | 53 | 33.0447 | 50 | 0.22 | 47 |
IV.FEMA.HNZ. | 2021-08-18T23:50:05.72 | 0.6 | undecidable | manual | S | 338 | 18.5703 | 120 | 0.03 | 50 |
IV.MML1.EHZ. | 2021-08-18T23:50:05.42 | 0.3 | undecidable | manual | P | 339 | 36.4413 | 50 | 0.04 | 72 |
IV.CSP1.EHZ. | 2021-08-18T23:50:04.65 | 0.3 | undecidable | manual | P | 10 | 32.0457 | 50 | -0.05 | 73 |
IV.RM33.EHZ. | 2021-08-18T23:50:04.80 | 0.3 | undecidable | manual | P | 169 | 33.744 | 50 | -0.16 | 71 |
IV.CESI.HHZ. | 2021-08-18T23:50:04.18 | 0.3 | undecidable | manual | P | 319 | 28.8489 | 50 | -0.03 | 73 |
IV.MC2.EHZ. | 2021-08-18T23:50:03.92 | 0.3 | undecidable | manual | S | 20 | 12.2766 | 131 | 0.01 | 76 |
IV.LNSS.HHZ. | 2021-08-18T23:50:03.36 | 0.3 | undecidable | manual | P | 199 | 24.0537 | 50 | -0.1 | 73 |
IV.T1299.HNZ. | 2021-08-18T23:50:03.40 | 0.1 | undecidable | manual | P | 148 | 22.5552 | 50 | 0.15 | 96 |
IV.FDMO.HHZ. | 2021-08-18T23:50:03.63 | 0.3 | undecidable | manual | P | 351 | 25.6521 | 50 | -0.09 | 73 |
IT.MTCL.HGZ. | 2021-08-18T23:50:03.50 | 0.1 | undecidable | manual | P | 332 | 23.4543 | 50 | 0.12 | 97 |
IV.SMA1.EHZ. | 2021-08-18T23:50:03.62 | 0.3 | undecidable | manual | P | 140 | 25.4523 | 50 | -0.07 | 73 |
IV.MTRA.HNZ. | 2021-08-18T23:50:03.11 | 0.1 | undecidable | manual | P | 105 | 21.9669 | 50 | -0.03 | 99 |
IV.GAVE.EHZ. | 2021-08-18T23:50:03.34 | 0.3 | undecidable | manual | P | 237 | 23.5542 | 50 | -0.04 | 74 |
IV.FEMA.HNZ. | 2021-08-18T23:50:02.56 | 0.1 | undecidable | manual | P | 338 | 18.5703 | 120 | 0 | 100 |
IV.MMO1.EHZ. | 2021-08-18T23:50:02.57 | 0.3 | undecidable | manual | P | 57 | 18.5703 | 120 | 0.01 | 75 |
IV.MC2.EHZ. | 2021-08-18T23:50:01.84 | 0.1 | positive | manual | P | 20 | 12.2766 | 131 | 0.31 | 95 |
IV.NRCA.HHZ. | 2021-08-18T23:50:01.72 | 0.3 | undecidable | manual | S | 328 | 3.3966 | 162 | -0.43 | 70 |
IV.NRCA.HHZ. | 2021-08-18T23:50:00.58 | 0.3 | undecidable | manual | P | 328 | 3.3966 | 162 | 0.06 | 76 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.4 | 0.00040500000000000003 | 0.16 | AML | other | m | 2021-08-18T23:50:01.92 |
IV.NRCA.HHE. | ML:1.3 | 0.0003075 | 0.1 | AML | other | m | 2021-08-18T23:50:02.50 |
IV.GAVE.EHN. | ML:1.2 | 0.0001097 | 0.24 | AML | other | m | 2021-08-18T23:50:07.40 |
IV.LNSS.HHE. | ML:1.3 | 0.00011080000000000001 | 0.38 | AML | other | m | 2021-08-18T23:50:07.67 |
IV.LNSS.HHN. | ML:1.3 | 0.0001109 | 0.16 | AML | other | m | 2021-08-18T23:50:07.73 |
IV.FDMO.HHN. | ML:1.0 | 0.00005465000000000001 | 0.66 | AML | other | m | 2021-08-18T23:50:07.88 |
IV.FDMO.HHE. | ML:0.8 | 0.00004195 | 1.1 | AML | other | m | 2021-08-18T23:50:07.93 |
IV.GAVE.EHE. | ML:1.2 | 0.0001115 | 1.32 | AML | other | m | 2021-08-18T23:50:08.10 |
IV.CESI.HHN. | ML:1.2 | 0.00007575000000000001 | 0.36 | AML | other | m | 2021-08-18T23:50:08.96 |
IV.CESI.HHE. | ML:1.0 | 0.000049199999999999997 | 1.66 | AML | other | m | 2021-08-18T23:50:09.05 |
IV.MML1.EHN. | ML:1.0 | 0.000039750000000000004 | 0.8 | AML | other | m | 2021-08-18T23:50:11.12 |
IV.MML1.EHE. | ML:0.9 | 0.0000324 | 0.18 | AML | other | m | 2021-08-18T23:50:11.41 |
IV.MOMA.HHE. | ML:1.0 | 0.000028400000000000003 | 0.2 | AML | other | m | 2021-08-18T23:50:14.74 |
IV.MOMA.HHN. | ML:0.8 | 0.00001865 | 1.4 | AML | other | m | 2021-08-18T23:50:17.02 |