A magnitude ML 0.5 earthquake occured in region: 1 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.7980, 13.0980 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 | 1 | 4957 | 4957 |
Preci | PG | 10 | 724 | 5681 |
Cascia | PG | 11 | 3217 | 8898 |
Castelsantangelo sul Nera | MC | 12 | 281 | 9179 |
Visso | MC | 15 | 1107 | 10286 |
Cerreto di Spoleto | PG | 15 | 1075 | 11361 |
Poggiodomo | PG | 16 | 117 | 11478 |
Arquata del Tronto | AP | 17 | 1178 | 12656 |
Ussita | MC | 17 | 444 | 13100 |
Accumoli | RI | 17 | 667 | 13767 |
Sellano | PG | 17 | 1079 | 14846 |
Vallo di Nera | PG | 19 | 364 | 15210 |
Montegallo | AP | 20 | 523 | 15733 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.5 | 2021-10-30 09:23:22 |
42.7982 | 13.0977 | 11 | 2022-03-30 13:04:15 |
Bollettino Sismico Italiano INGV | 97377191 |
Field | Value |
---|---|
Time (UTC) | 2021-10-30 09:23:22 ± 0.1 |
Latitude | 42.7982 ± 0.0045 |
Longitude | 13.0977 ± 0.0086 |
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 | 97377191 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 740 |
Semi-minor axis of confidence ellipse (meter) | 380 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 59 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 192 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.03777 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32825 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 97377191 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-10 11:52:17 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MML1.HNE. | 2021-10-30T09:23:34.32 | 0.6 | undecidable | manual | S | 344 | 36.4413 | 50 | -0.08 | 47 |
IV.CSP1.EHZ. | 2021-10-30T09:23:33.83 | 0.3 | undecidable | manual | S | 15 | 33.744 | 50 | 0.16 | 70 |
IV.CESI.HHZ. | 2021-10-30T09:23:32.11 | 1.0 | undecidable | manual | S | 326 | 27.75 | 50 | 0.03 | 24 |
IV.SMA1.EHZ. | 2021-10-30T09:23:31.98 | 0.6 | undecidable | manual | S | 134 | 26.8509 | 50 | 0.14 | 47 |
IV.FDMO.HHZ. | 2021-10-30T09:23:31.48 | 0.3 | undecidable | manual | S | 358 | 26.4513 | 50 | -0.25 | 69 |
IV.MTRA.EHE. | 2021-10-30T09:23:30.99 | 0.6 | undecidable | manual | S | 101 | 24.753 | 50 | -0.29 | 46 |
IV.MMO1.EHN. | 2021-10-30T09:23:30.30 | 0.6 | undecidable | manual | S | 59 | 21.7671 | 50 | -0.17 | 47 |
IV.MML1.HNE. | 2021-10-30T09:23:29.85 | 1.0 | undecidable | manual | P | 344 | 36.4413 | 50 | 0.62 | 20 |
IV.FEMA.HNE. | 2021-10-30T09:23:29.52 | 0.6 | undecidable | manual | S | 348 | 18.5703 | 50 | -0.11 | 48 |
IV.MC2.EHZ. | 2021-10-30T09:23:28.60 | 0.3 | undecidable | manual | S | 31 | 14.5743 | 127 | 0.12 | 73 |
IV.CSP1.EHZ. | 2021-10-30T09:23:28.90 | 0.1 | undecidable | manual | P | 15 | 33.744 | 50 | 0.09 | 94 |
IV.MTRA.EHE. | 2021-10-30T09:23:27.47 | 0.6 | undecidable | manual | P | 101 | 24.753 | 50 | 0.04 | 48 |
IV.FEMA.HNE. | 2021-10-30T09:23:27.02 | 1.0 | undecidable | manual | P | 348 | 18.5703 | 50 | 0.54 | 22 |
IV.MMO1.EHN. | 2021-10-30T09:23:27.02 | 1.0 | undecidable | manual | P | 59 | 21.7671 | 50 | 0.05 | 24 |
IV.SMA1.EHZ. | 2021-10-30T09:23:27.75 | 0.1 | undecidable | manual | P | 134 | 26.8509 | 50 | 0 | 97 |
IV.CESI.HHZ. | 2021-10-30T09:23:27.95 | 0.6 | undecidable | manual | P | 326 | 27.75 | 50 | 0.06 | 48 |
IV.FDMO.HHZ. | 2021-10-30T09:23:27.66 | 0.1 | undecidable | manual | P | 358 | 26.4513 | 50 | -0.03 | 97 |
IV.MC2.EHZ. | 2021-10-30T09:23:26.09 | 0.1 | undecidable | manual | P | 31 | 14.5743 | 127 | 0.28 | 94 |
IT.MTCL.HGZ. | 2021-10-30T09:23:26.47 | 1.0 | undecidable | manual | P | 340 | 23.1546 | 50 | -0.71 | 20 |
IV.NRCA.HHZ. | 2021-10-30T09:23:25.88 | 0.3 | undecidable | manual | S | 19 | 4.1958 | 159 | -0.33 | 71 |
IV.NRCA.HHZ. | 2021-10-30T09:23:24.45 | 0.1 | undecidable | manual | P | 19 | 4.1958 | 159 | -0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHE. | ML:0.3 | 0.000008551700500000001 | 0.2432 | AML | other | m | 2021-10-30T09:23:34.19 |
IV.FDMO.HHN. | ML:0.4 | 0.00001291404 | 0.2368 | AML | other | m | 2021-10-30T09:23:32.83 |
IV.SMA1.EHE. | ML:0.4 | 0.000015588565 | 0.3008 | AML | other | m | 2021-10-30T09:23:32.95 |
IV.SMA1.EHN. | ML:0.4 | 0.000014490675000000002 | 0.3008 | AML | other | m | 2021-10-30T09:23:32.84 |
IV.CSP1.EHN. | ML:0.7 | 0.0000213502165 | 0.4416 | AML | other | m | 2021-10-30T09:23:34.37 |
IV.CSP1.EHE. | ML:0.9 | 0.000031539208 | 0.1984 | AML | other | m | 2021-10-30T09:23:34.23 |