A magnitude ML 1.2 earthquake occured in region: 8 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.8160, 13.1930 at 11 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 | 9 | 4957 | 4957 |
Castelsantangelo sul Nera | MC | 9 | 281 | 5238 |
Arquata del Tronto | AP | 10 | 1178 | 6416 |
Montegallo | AP | 12 | 523 | 6939 |
Accumoli | RI | 14 | 667 | 7606 |
Preci | PG | 14 | 724 | 8330 |
Montemonaco | AP | 15 | 604 | 8934 |
Ussita | MC | 15 | 444 | 9378 |
Visso | MC | 15 | 1107 | 10485 |
Cascia | PG | 18 | 3217 | 13702 |
Acquasanta Terme | AP | 18 | 2916 | 16618 |
Montefortino | FM | 19 | 1178 | 17796 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-04-19 11:00:42 |
42.8158 | 13.1932 | 11 | 2021-04-19 11:09:55 |
Sala Sismica INGV-Roma | 89253361 |
Field | Value |
---|---|
Time (UTC) | 2021-04-19 11:00:42 ± 0.05 |
Latitude | 42.8158 ± 0.0027 |
Longitude | 13.1932 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89253361 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 338 |
Semi-minor axis of confidence ellipse (meter) | 290 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 71 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 340.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 62 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 26 |
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) | 0.06025 |
Epicentral distance of station farthest from the epicenter (degree) | 0.51801 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 89253361 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-19 11:09:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CESI.HHZ. | 2021-04-19T11:00:53.80 | 0.1 | undecidable | manual | S | 312 | 31.4463 | 50 | 0.06 | 96 |
IV.MF5.EHZ. | 2021-04-19T11:00:53.68 | 0.3 | undecidable | manual | S | 49 | 28.8489 | 50 | 0.63 | 63 |
IV.EL6.EHZ. | 2021-04-19T11:00:53.16 | 0.3 | undecidable | manual | P | 353 | 57.498 | 50 | 0.04 | 69 |
IV.CSP1.EHZ. | 2021-04-19T11:00:53.53 | 0.3 | undecidable | manual | S | 2 | 30.6471 | 50 | 0.01 | 73 |
IV.FDMO.HHZ. | 2021-04-19T11:00:52.10 | 0.3 | undecidable | manual | S | 341 | 25.9518 | 50 | -0.17 | 71 |
IV.LNSS.HHZ. | 2021-04-19T11:00:52.67 | 0.1 | undecidable | manual | S | 208 | 26.6511 | 50 | 0.2 | 94 |
IV.GAVE.EHZ. | 2021-04-19T11:00:52.90 | 0.3 | undecidable | manual | S | 241 | 27.9498 | 50 | 0.1 | 72 |
IT.MTCL.HGZ. | 2021-04-19T11:00:51.69 | 0.1 | undecidable | manual | S | 322 | 25.2525 | 50 | -0.4 | 90 |
IV.SMA1.EHZ. | 2021-04-19T11:00:51.36 | 0.3 | undecidable | manual | S | 151 | 23.5542 | 50 | -0.28 | 70 |
IV.CESI.HHZ. | 2021-04-19T11:00:49.14 | 0.6 | negative | manual | P | 312 | 31.4463 | 50 | 0.03 | 48 |
IV.MTRA.EHZ. | 2021-04-19T11:00:49.74 | 0.3 | undecidable | manual | S | 112 | 17.7711 | 121 | -0.25 | 71 |
IV.MF5.EHZ. | 2021-04-19T11:00:49.15 | 0.6 | undecidable | manual | P | 49 | 28.8489 | 50 | 0.43 | 45 |
IV.RM33.EHZ. | 2021-04-19T11:00:49.52 | 0.3 | negative | manual | P | 177 | 34.0437 | 50 | 0 | 72 |
IV.MC2.EHZ. | 2021-04-19T11:00:48.20 | 0.1 | undecidable | manual | S | 358 | 10.5783 | 135 | 0.19 | 97 |
IV.CSP1.EHZ. | 2021-04-19T11:00:48.76 | 0.6 | positive | manual | P | 2 | 30.6471 | 50 | -0.22 | 46 |
IV.MMO1.EHZ. | 2021-04-19T11:00:48.81 | 0.1 | undecidable | manual | S | 50 | 14.2746 | 127 | -0.16 | 97 |
IT.MTCL.HGZ. | 2021-04-19T11:00:48.00 | 0.1 | undecidable | manual | P | 322 | 25.2525 | 50 | -0.16 | 95 |
IV.FDMO.HHZ. | 2021-04-19T11:00:48.11 | 0.6 | negative | manual | P | 341 | 25.9518 | 50 | -0.15 | 47 |
IV.LNSS.HHZ. | 2021-04-19T11:00:48.46 | 0.6 | positive | manual | P | 208 | 26.6511 | 50 | 0.08 | 48 |
IV.GAVE.EHZ. | 2021-04-19T11:00:48.67 | 1.0 | negative | manual | P | 241 | 27.9498 | 50 | 0.1 | 24 |
IV.SMA1.EHZ. | 2021-04-19T11:00:47.88 | 0.6 | undecidable | manual | P | 151 | 23.5542 | 50 | -0.02 | 49 |
IV.NRCA.HHN. | 2021-04-19T11:00:47.09 | 0.1 | undecidable | manual | S | 287 | 6.6933 | 148 | -0.06 | 100 |
IV.MC2.EHZ. | 2021-04-19T11:00:46.03 | 0.6 | undecidable | manual | P | 358 | 10.5783 | 135 | 0.23 | 48 |
IV.MMO1.EHZ. | 2021-04-19T11:00:46.35 | 0.3 | undecidable | manual | P | 50 | 14.2746 | 127 | -0.01 | 75 |
IV.MTRA.EHZ. | 2021-04-19T11:00:46.88 | 0.1 | undecidable | manual | P | 112 | 17.7711 | 121 | -0.07 | 98 |
IV.NRCA.HHN. | 2021-04-19T11:00:45.50 | 0.1 | undecidable | manual | P | 287 | 6.6933 | 148 | 0.19 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:1.1 | 0.0001064 | 0.42 | AML | other | m | 2021-04-19T11:00:50.27 |
IV.MTRA.EHN. | ML:1.2 | 0.00013350000000000002 | 1.4 | AML | other | m | 2021-04-19T11:00:51.86 |
IV.FDMO.HHN. | ML:1.0 | 0.00005335 | 0.22 | AML | other | m | 2021-04-19T11:00:52.19 |
IV.FDMO.HHE. | ML:0.9 | 0.0000438 | 0.16 | AML | other | m | 2021-04-19T11:00:52.29 |
IV.LNSS.HHE. | ML:1.2 | 0.00008435 | 0.24 | AML | other | m | 2021-04-19T11:00:52.84 |
IV.LNSS.HHN. | ML:1.2 | 0.0000864 | 0.28 | AML | other | m | 2021-04-19T11:00:52.85 |
IV.CESI.HHN. | ML:1.6 | 0.00017099999999999998 | 0.14 | AML | other | m | 2021-04-19T11:00:54.07 |
IV.CESI.HHE. | ML:1.2 | 0.0000698 | 0.12 | AML | other | m | 2021-04-19T11:00:54.14 |