A magnitude ML 0.9 earthquake occured in region: 3 km SW Norcia (PG), on
and geographic coordinates (lat, lon) 42.7690, 13.0820 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 | 3 | 4957 | 4957 |
Cascia | PG | 8 | 3217 | 8174 |
Preci | PG | 13 | 724 | 8898 |
Poggiodomo | PG | 14 | 117 | 9015 |
Cerreto di Spoleto | PG | 15 | 1075 | 10090 |
Castelsantangelo sul Nera | MC | 15 | 281 | 10371 |
Accumoli | RI | 16 | 667 | 11038 |
Monteleone di Spoleto | PG | 17 | 599 | 11637 |
Arquata del Tronto | AP | 18 | 1178 | 12815 |
Vallo di Nera | PG | 18 | 364 | 13179 |
Cittareale | RI | 18 | 482 | 13661 |
Visso | MC | 18 | 1107 | 14768 |
Sellano | PG | 18 | 1079 | 15847 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2021-10-17 07:23:44 |
42.769 | 13.0818 | 11 | 2022-03-30 13:04:12 |
Bollettino Sismico Italiano INGV | 96847671 |
Reviewed Rev100 |
ML 0.9 | 2021-10-17 07:23:44 |
42.7653 | 13.0905 | 11 | 2021-10-17 08:51:26 |
Sala Sismica INGV-Roma | 96676651 |
Field | Value |
---|---|
Time (UTC) | 2021-10-17 07:23:44 ± 0.05 |
Latitude | 42.7690 ± 0.0027 |
Longitude | 13.0818 ± 0.0061 |
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 | 96847671 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 519 |
Semi-minor axis of confidence ellipse (meter) | 222 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 289 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 520.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 71 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.06925 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41279 |
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 | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96676651 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-17 08:51:26 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96847671 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-21 13:53:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RM33.HNZ. | 2021-10-17T07:23:55.40 | 0.6 | undecidable | manual | S | 159 | 30.8469 | 50 | -0.12 | 48 |
IV.SMA1.EHZ. | 2021-10-17T07:23:54.87 | 0.6 | undecidable | manual | S | 127 | 25.752 | 50 | 0.7 | 42 |
IV.MMO1.HNZ. | 2021-10-17T07:23:53.84 | 0.6 | undecidable | manual | S | 54 | 24.6531 | 50 | -0.03 | 49 |
IV.ASSB.HHE. | 2021-10-17T07:23:53.28 | 0.1 | undecidable | manual | P | 312 | 45.8208 | 50 | -0.05 | 94 |
IV.LNSS.HHZ. | 2021-10-17T07:23:52.33 | 0.1 | undecidable | manual | S | 190 | 18.7701 | 50 | 0.03 | 100 |
IV.MC2.EHZ. | 2021-10-17T07:23:52.23 | 0.3 | undecidable | manual | S | 29 | 18.0708 | 50 | 0.11 | 74 |
IV.GAVE.EHZ. | 2021-10-17T07:23:52.17 | 0.3 | undecidable | manual | S | 241 | 17.4714 | 50 | 0.2 | 72 |
IV.CSP1.EHZ. | 2021-10-17T07:23:51.98 | 0.1 | undecidable | manual | P | 16 | 37.2294 | 50 | -0.01 | 96 |
IV.MTRA.HNZ. | 2021-10-17T07:23:50.31 | 0.1 | undecidable | manual | P | 93 | 25.6521 | 50 | 0.1 | 97 |
IV.FDMO.HHN. | 2021-10-17T07:23:50.94 | 0.1 | undecidable | manual | P | 1 | 29.6481 | 50 | 0.11 | 97 |
IV.RM33.HNZ. | 2021-10-17T07:23:50.60 | 0.1 | undecidable | manual | P | 159 | 30.8469 | 50 | -0.41 | 90 |
IV.SMA1.EHZ. | 2021-10-17T07:23:50.40 | 0.6 | undecidable | manual | P | 127 | 25.752 | 50 | 0.17 | 48 |
IV.GAVE.EHZ. | 2021-10-17T07:23:49.09 | 0.1 | undecidable | manual | P | 241 | 17.4714 | 50 | 0.14 | 98 |
IV.NRCA.HHZ. | 2021-10-17T07:23:49.35 | 0.3 | undecidable | manual | S | 20 | 7.6812 | 145 | -0.15 | 76 |
IV.LNSS.HHZ. | 2021-10-17T07:23:49.14 | 0.1 | undecidable | manual | P | 190 | 18.7701 | 50 | 0 | 100 |
IV.MMO1.HNZ. | 2021-10-17T07:23:49.85 | 0.1 | undecidable | manual | P | 54 | 24.6531 | 50 | -0.2 | 95 |
IV.MC2.EHZ. | 2021-10-17T07:23:49.06 | 0.1 | undecidable | manual | P | 29 | 18.0708 | 50 | 0.02 | 100 |
IV.NRCA.HHZ. | 2021-10-17T07:23:47.63 | 0.1 | positive | manual | P | 20 | 7.6812 | 145 | 0.1 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.3 | 0.00028250000000000004 | 0.16 | AML | other | m | 2021-10-17T07:23:49.54 |
IV.NRCA.HHN. | ML:1.0 | 0.000148 | 0.06 | AML | other | m | 2021-10-17T07:23:49.91 |
IV.GAVE.EHN. | ML:0.7 | 0.00003995 | 0.36 | AML | other | m | 2021-10-17T07:23:52.41 |
IV.LNSS.HHN. | ML:0.9 | 0.0000613 | 0.6 | AML | other | m | 2021-10-17T07:23:52.78 |
IV.LNSS.HHE. | ML:0.8 | 0.00004295 | 0.5 | AML | other | m | 2021-10-17T07:23:52.79 |
IV.GAVE.EHE. | ML:0.8 | 0.00005325000000000001 | 0.94 | AML | other | m | 2021-10-17T07:23:53.55 |