A magnitude ML 0.9 earthquake occured in region: 4 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8310, 13.1080 at 10 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 |
Preci | PG | 8 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 8 | 281 | 5962 |
Visso | MC | 11 | 1107 | 7069 |
Ussita | MC | 13 | 444 | 7513 |
Cascia | PG | 15 | 3217 | 10730 |
Cerreto di Spoleto | PG | 16 | 1075 | 11805 |
Sellano | PG | 16 | 1079 | 12884 |
Arquata del Tronto | AP | 17 | 1178 | 14062 |
Montegallo | AP | 19 | 523 | 14585 |
Accumoli | RI | 19 | 667 | 15252 |
Poggiodomo | PG | 19 | 117 | 15369 |
Montemonaco | AP | 20 | 604 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-02-11 23:27:07 |
42.8313 | 13.1075 | 10 | 2021-02-11 23:38:53 |
Sala Sismica INGV-Roma | 87062881 |
Field | Value |
---|---|
Time (UTC) | 2021-02-11 23:27:07 ± 0.1 |
Latitude | 42.8313 ± 0.0036 |
Longitude | 13.1075 ± 0.0061 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87062881 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 394 |
Semi-minor axis of confidence ellipse (meter) | 352 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 118 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 390.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 125 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 12 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26980 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 87062881 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-11 23:38:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CPGN.EHZ. | 2021-02-11T23:27:42.11 | 3.0 | undecidable | manual | Sn | -3.8 | 0 | |||
IV.BARO.EHZ. | 2021-02-11T23:27:41.21 | 3.0 | undecidable | manual | Sg | -0.25 | 0 | |||
IV.FDMO.HHZ. | 2021-02-11T23:27:15.78 | 0.3 | undecidable | manual | S | 356 | 22.8549 | 113 | -0.07 | 73 |
IV.MMO1.EHZ. | 2021-02-11T23:27:14.53 | 0.3 | undecidable | manual | S | 67 | 19.3695 | 117 | -0.23 | 71 |
IV.CSP1.EHZ. | 2021-02-11T23:27:13.45 | 1.0 | undecidable | manual | P | 15 | 29.9478 | 50 | 0.02 | 24 |
IV.LNSS.HHZ. | 2021-02-11T23:27:12.75 | 0.6 | undecidable | manual | P | 192 | 25.9518 | 111 | -0.04 | 49 |
IV.GAVE.HNN. | 2021-02-11T23:27:12.24 | 0.3 | undecidable | manual | P | 228 | 23.2545 | 113 | -0.04 | 73 |
IV.MC2.EHZ. | 2021-02-11T23:27:12.49 | 0.3 | undecidable | manual | S | 37 | 11.0778 | 131 | 0.12 | 74 |
IV.CESI.HHZ. | 2021-02-11T23:27:12.55 | 0.3 | undecidable | manual | P | 320 | 25.3524 | 111 | -0.13 | 72 |
IV.FDMO.HHZ. | 2021-02-11T23:27:12.22 | 0.3 | undecidable | manual | P | 356 | 22.8549 | 113 | 0.01 | 74 |
IV.MMO1.EHZ. | 2021-02-11T23:27:11.58 | 0.6 | positive | manual | P | 67 | 19.3695 | 117 | 0 | 50 |
IV.NRCA.HHZ. | 2021-02-11T23:27:10.52 | 0.1 | undecidable | manual | S | 66 | 0.5994 | 176 | -0.12 | 100 |
IV.MC2.EHZ. | 2021-02-11T23:27:10.55 | 0.6 | undecidable | manual | P | 37 | 11.0778 | 131 | 0.35 | 47 |
IV.MF5.EHZ. | 2021-02-11T23:27:10.93 | 3.0 | undecidable | manual | P | -3.13 | 0 | |||
IV.NRCA.HHZ. | 2021-02-11T23:27:09.39 | 0.1 | undecidable | manual | P | 66 | 0.5994 | 176 | 0.19 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHN. | ML:1.0 | 0.000058800000000000006 | 0.42 | AML | other | m | 2021-02-11T23:27:16.71 |
IV.FDMO.HHE. | ML:0.8 | 0.000042949999999999994 | 0.42 | AML | other | m | 2021-02-11T23:27:20.41 |