A magnitude ML 0.9 earthquake occured in region: 8 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7690, 13.1900 at 13 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 | 8 | 4957 | 4957 |
Arquata del Tronto | AP | 9 | 1178 | 6135 |
Accumoli | RI | 10 | 667 | 6802 |
Castelsantangelo sul Nera | MC | 14 | 281 | 7083 |
Montegallo | AP | 14 | 523 | 7606 |
Cascia | PG | 15 | 3217 | 10823 |
Cittareale | RI | 17 | 482 | 11305 |
Preci | PG | 17 | 724 | 12029 |
Amatrice | RI | 17 | 2657 | 14686 |
Acquasanta Terme | AP | 18 | 2916 | 17602 |
Montemonaco | AP | 18 | 604 | 18206 |
Visso | MC | 20 | 1107 | 19313 |
Ussita | MC | 20 | 444 | 19757 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2017-02-20 19:36:14 |
42.7693 | 13.1902 | 13 | 2017-02-20 20:18:15 |
Sala Sismica INGV-Roma | 41391881 |
Field | Value |
---|---|
Time (UTC) | 2017-02-20 19:36:14 ± 0.04 |
Latitude | 42.7693 ± 0.0018 |
Longitude | 13.1902 ± 0.0025 |
Depth (km) | 13 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 41391881 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 179 |
Semi-minor axis of confidence ellipse (meter) | 64 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 60 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 180.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 79 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 28 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.11 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33725 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 41391881 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2017-02-20 20:18:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.T1219.EHZ. | 2017-02-20T19:36:26.40 | 0.6 | undecidable | manual | S | 335 | 35.1426 | 95 | 0.12 | 47 |
IV.TERO.HHZ. | 2017-02-20T19:36:26.71 | 0.6 | undecidable | manual | S | 116 | 37.4292 | 95 | -0.18 | 46 |
IV.CSP1.EHZ. | 2017-02-20T19:36:26.57 | 0.6 | undecidable | manual | S | 2 | 35.8419 | 95 | 0.12 | 47 |
IV.T1246.HHE. | 2017-02-20T19:36:25.76 | 0.6 | undecidable | manual | S | 130 | 32.1456 | 96 | 0.27 | 46 |
IV.T1215.EHZ. | 2017-02-20T19:36:23.97 | 0.6 | undecidable | manual | S | 278 | 26.4513 | 98 | 0.01 | 48 |
IV.T1217.EHZ. | 2017-02-20T19:36:22.75 | 0.6 | undecidable | manual | S | 253 | 22.0668 | 102 | -0.05 | 49 |
IV.T1241.EHZ. | 2017-02-20T19:36:22.69 | 0.6 | undecidable | manual | S | 64 | 21.867 | 102 | -0.08 | 48 |
IV.T1216.EHZ. | 2017-02-20T19:36:22.00 | 0.6 | undecidable | manual | S | 314 | 19.3695 | 105 | -0.11 | 48 |
IV.LNSS.HHZ. | 2017-02-20T19:36:22.89 | 0.3 | undecidable | manual | S | 214 | 22.1556 | 102 | 0.06 | 72 |
IV.T1219.EHZ. | 2017-02-20T19:36:21.17 | 0.6 | negative | manual | P | 335 | 35.1426 | 95 | -0.09 | 47 |
IV.TERO.HHZ. | 2017-02-20T19:36:21.44 | 0.1 | undecidable | manual | P | 116 | 37.4292 | 95 | -0.18 | 92 |
IV.MC2.EHZ. | 2017-02-20T19:36:21.46 | 0.6 | undecidable | manual | S | 360 | 15.7731 | 113 | 0.26 | 47 |
IV.CSP1.EHZ. | 2017-02-20T19:36:21.36 | 0.1 | undecidable | manual | P | 2 | 35.8419 | 95 | 0 | 96 |
IV.T1220.EHZ. | 2017-02-20T19:36:21.66 | 3.0 | negative | manual | P | -0.13 | 0 | |||
IV.T1212.EHZ. | 2017-02-20T19:36:20.18 | 0.6 | undecidable | manual | S | 261 | 11.9769 | 124 | -0.14 | 49 |
IV.T1218.EHZ. | 2017-02-20T19:36:20.42 | 0.3 | undecidable | manual | S | 209 | 12.5763 | 122 | -0.03 | 75 |
IV.T1246.HHE. | 2017-02-20T19:36:20.74 | 0.1 | undecidable | manual | P | 130 | 32.1456 | 96 | -0.07 | 95 |
IV.RM33.EHZ. | 2017-02-20T19:36:19.26 | 3.0 | positive | manual | P | -1.12 | 0 | |||
IV.T1215.EHZ. | 2017-02-20T19:36:19.98 | 1.0 | negative | manual | P | 278 | 26.4513 | 98 | 0.05 | 24 |
IV.T1217.EHZ. | 2017-02-20T19:36:19.22 | 0.1 | undecidable | manual | P | 253 | 22.0668 | 102 | -0.04 | 98 |
IV.T1241.EHZ. | 2017-02-20T19:36:19.25 | 0.6 | positive | manual | P | 64 | 21.867 | 102 | 0.02 | 49 |
IV.NRCA.HHZ. | 2017-02-20T19:36:19.42 | 0.6 | undecidable | manual | S | 319 | 9.3795 | 134 | -0.36 | 46 |
IV.LNSS.HHZ. | 2017-02-20T19:36:19.34 | 0.1 | undecidable | manual | P | 214 | 22.1556 | 102 | 0.07 | 96 |
IV.MC2.EHZ. | 2017-02-20T19:36:18.52 | 0.6 | positive | manual | P | 360 | 15.7731 | 113 | 0.19 | 48 |
IV.SMA1.EHZ. | 2017-02-20T19:36:18.93 | 3.0 | negative | manual | P | 0 | 0 | |||
IV.T1299.EHZ. | 2017-02-20T19:36:18.62 | 3.0 | positive | manual | Pn | 0.07 | 0 | |||
IV.T1214.EHZ. | 2017-02-20T19:36:18.75 | 0.6 | undecidable | manual | S | 126 | 1.8981 | 170 | -0.07 | 50 |
IV.T1218.EHZ. | 2017-02-20T19:36:18.03 | 0.6 | positive | manual | P | 209 | 12.5763 | 122 | 0.13 | 48 |
IV.T1216.EHZ. | 2017-02-20T19:36:18.77 | 0.1 | undecidable | manual | P | 314 | 19.3695 | 105 | -0.09 | 97 |
IV.T1214.EHZ. | 2017-02-20T19:36:17.13 | 0.6 | undecidable | manual | P | 126 | 1.8981 | 170 | 0.18 | 49 |
IV.NRCA.HHZ. | 2017-02-20T19:36:17.53 | 0.1 | negative | manual | P | 319 | 9.3795 | 134 | 0.02 | 100 |
IV.T1212.EHZ. | 2017-02-20T19:36:17.91 | 0.6 | positive | manual | P | 261 | 11.9769 | 124 | 0.08 | 49 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHN. | ML:1.0 | 0.0000615 | 1.34 | AML | other | m | 2017-02-20T19:36:23.05 |
IV.LNSS.HHE. | ML:1.0 | 0.0000596 | 0.94 | AML | other | m | 2017-02-20T19:36:23.09 |
IV.NRCA.HHN. | ML:1.2 | 0.0001965 | 0.1 | AML | other | m | 2017-02-20T19:36:19.53 |
IV.NRCA.HHE. | ML:1.3 | 0.0002395 | 0.16 | AML | other | m | 2017-02-20T19:36:19.53 |
IV.RM33.EHN. | ML:0.6 | 0.000022150000000000003 | 0.96 | AML | other | m | 2017-02-20T19:36:25.54 |
IV.RM33.EHE. | ML:0.7 | 0.0000261 | 0.14 | AML | other | m | 2017-02-20T19:36:25.64 |
IV.T1219.EHE. | ML:0.7 | 0.000019645 | 1.06 | AML | other | m | 2017-02-20T19:36:26.92 |