A magnitude ML 0.8 earthquake occured in region: 3 km SW Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8770, 13.1300 at 8 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 3 | 281 | 281 |
Visso | MC | 7 | 1107 | 1388 |
Preci | PG | 7 | 724 | 2112 |
Ussita | MC | 8 | 444 | 2556 |
Norcia | PG | 10 | 4957 | 7513 |
Bolognola | MC | 15 | 142 | 7655 |
Montemonaco | AP | 16 | 604 | 8259 |
Sellano | PG | 17 | 1079 | 9338 |
Monte Cavallo | MC | 17 | 145 | 9483 |
Montegallo | AP | 17 | 523 | 10006 |
Acquacanina | MC | 18 | 121 | 10127 |
Fiastra | MC | 18 | 559 | 10686 |
Arquata del Tronto | AP | 18 | 1178 | 11864 |
Fiordimonte | MC | 18 | 202 | 12066 |
Cerreto di Spoleto | PG | 19 | 1075 | 13141 |
Montefortino | FM | 19 | 1178 | 14319 |
Pieve Torina | MC | 20 | 1458 | 15777 |
Cascia | PG | 20 | 3217 | 18994 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-02-18 17:40:25 |
42.877 | 13.1302 | 8 | 2021-02-18 17:47:14 |
Sala Sismica INGV-Roma | 87282131 |
Field | Value |
---|---|
Time (UTC) | 2021-02-18 17:40:25 ± 0.07 |
Latitude | 42.8770 ± 0.0027 |
Longitude | 13.1302 ± 0.0037 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87282131 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 295 |
Semi-minor axis of confidence ellipse (meter) | 112 |
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) | 300.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 85 |
Number of associated phases, regardless of their use for origin computation | 22 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.43078 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 87282131 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-18 17:47:14 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-02-18T17:40:40.42 | 0.6 | undecidable | manual | S | 126 | 47.8188 | 50 | -0.46 | 43 |
IV.PF6.EHZ. | 2021-02-18T17:40:35.07 | 3.0 | undecidable | manual | S | 0 | ||||
IV.GAVE.HNZ. | 2021-02-18T17:40:35.07 | 0.3 | undecidable | manual | S | 223 | 28.0497 | 106 | -0.14 | 72 |
IV.MTRA.HNZ. | 2021-02-18T17:40:34.15 | 0.3 | undecidable | manual | S | 122 | 25.4523 | 108 | -0.18 | 71 |
IV.GUMA.HHZ. | 2021-02-18T17:40:34.93 | 0.3 | undecidable | manual | S | 39 | 26.4513 | 107 | 0.26 | 70 |
IV.TERO.HHZ. | 2021-02-18T17:40:34.63 | 0.1 | undecidable | manual | P | 126 | 47.8188 | 50 | 0.44 | 86 |
IV.CESI.HHZ. | 2021-02-18T17:40:33.65 | 0.3 | undecidable | manual | S | 308 | 23.1546 | 110 | 0.07 | 73 |
IV.CSP1.EHZ. | 2021-02-18T17:40:33.80 | 0.3 | undecidable | manual | S | 14 | 24.5532 | 109 | -0.25 | 71 |
IV.MF5.EHZ. | 2021-02-18T17:40:31.21 | 0.1 | undecidable | manual | P | 65 | 29.4483 | 106 | 0.04 | 97 |
IV.MMO1.EHZ. | 2021-02-18T17:40:31.25 | 0.6 | undecidable | manual | S | 81 | 16.1727 | 117 | -0.1 | 49 |
IV.FDMO.HHZ. | 2021-02-18T17:40:31.79 | 0.3 | undecidable | manual | S | 349 | 18.0708 | 115 | -0.14 | 73 |
IV.GAVE.HNZ. | 2021-02-18T17:40:30.92 | 0.1 | undecidable | manual | P | 223 | 28.0497 | 106 | 0.01 | 98 |
IV.MTRA.HNZ. | 2021-02-18T17:40:30.25 | 0.1 | undecidable | manual | P | 122 | 25.4523 | 108 | -0.16 | 96 |
IV.GUMA.HHZ. | 2021-02-18T17:40:30.63 | 0.1 | undecidable | manual | P | 39 | 26.4513 | 107 | 0.03 | 98 |
IV.FDMO.HHZ. | 2021-02-18T17:40:29.02 | 0.1 | undecidable | manual | P | 349 | 18.0708 | 115 | 0 | 100 |
IV.CESI.HHZ. | 2021-02-18T17:40:29.82 | 0.6 | undecidable | manual | P | 308 | 23.1546 | 110 | -0.15 | 48 |
IV.CSP1.EHZ. | 2021-02-18T17:40:29.87 | 1.0 | negative | manual | P | 14 | 24.5532 | 109 | -0.37 | 23 |
IV.MMO1.EHZ. | 2021-02-18T17:40:28.71 | 0.1 | positive | manual | P | 81 | 16.1727 | 117 | 0.03 | 100 |
IV.NRCA.HHZ. | 2021-02-18T17:40:28.39 | 0.6 | undecidable | manual | S | 195 | 4.995 | 149 | -0.01 | 51 |
IV.MC2.EHZ. | 2021-02-18T17:40:28.68 | 0.6 | undecidable | manual | S | 51 | 6.0939 | 144 | 0.06 | 50 |
IV.NRCA.HHZ. | 2021-02-18T17:40:27.19 | 0.1 | undecidable | manual | P | 195 | 4.995 | 149 | 0.21 | 98 |
IV.MC2.EHZ. | 2021-02-18T17:40:27.32 | 0.6 | undecidable | manual | P | 51 | 6.0939 | 144 | 0.21 | 49 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHN. | ML:0.5 | 0.0000258 | 1.02 | AML | other | m | 2021-02-18T17:40:32.24 |
IV.CESI.HHN. | ML:1.1 | 0.0000885 | 0.12 | AML | other | m | 2021-02-18T17:40:33.90 |
IV.CESI.HHE. | ML:0.8 | 0.00004265 | 0.24 | AML | other | m | 2021-02-18T17:40:33.96 |
IV.FDMO.HHE. | ML:0.4 | 0.0000183 | 1.52 | AML | other | m | 2021-02-18T17:40:33.16 |
IV.NRCA.HHE. | ML:0.0 | 0.00045747614999999995 | 0.1536 | AML | other | m | 2021-02-18T17:40:29.16 |
IV.NRCA.HHN. | ML:0.0 | 0.0006379759499999999 | 0.0896 | AML | other | m | 2021-02-18T17:40:28.41 |
IV.CSP1.EHE. | ML:0.9 | 0.000050504835 | 0.1408 | AML | other | m | 2021-02-18T17:40:34.40 |
IV.CSP1.EHN. | ML:1.0 | 0.000052736515 | 0.1536 | AML | other | m | 2021-02-18T17:40:35.35 |