A magnitude ML 0.9 earthquake occured in region: 4 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.8250, 13.1200 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 |
Castelsantangelo sul Nera | MC | 8 | 281 | 5238 |
Preci | PG | 9 | 724 | 5962 |
Visso | MC | 12 | 1107 | 7069 |
Ussita | MC | 13 | 444 | 7513 |
Cascia | PG | 15 | 3217 | 10730 |
Arquata del Tronto | AP | 16 | 1178 | 11908 |
Cerreto di Spoleto | PG | 17 | 1075 | 12983 |
Sellano | PG | 17 | 1079 | 14062 |
Montegallo | AP | 18 | 523 | 14585 |
Accumoli | RI | 18 | 667 | 15252 |
Montemonaco | AP | 19 | 604 | 15856 |
Poggiodomo | PG | 20 | 117 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-04-14 23:51:26 |
42.825 | 13.1198 | 10 | 2021-04-14 23:56:49 |
Sala Sismica INGV-Roma | 89101861 |
Field | Value |
---|---|
Time (UTC) | 2021-04-14 23:51:26 ± 0.26 |
Latitude | 42.8250 ± 0.0135 |
Longitude | 13.1198 ± 0.0123 |
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 | 89101861 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1560 |
Semi-minor axis of confidence ellipse (meter) | 909 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 161 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1560.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 271 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27339 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89101861 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-14 23:56:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
OX.SABO.HNZ. | 2021-04-14T23:52:49.60 | 3.0 | undecidable | manual | Sn | -0.56 | 0 | |||
IV.MTMR.EHZ. | 2021-04-14T23:52:05.49 | 3.0 | positive | manual | Pg | 1.11 | 0 | |||
IV.SEI.HHZ. | 2021-04-14T23:51:53.63 | 3.0 | negative | manual | Pg | 0.16 | 0 | |||
IV.CSP1.EHZ. | 2021-04-14T23:51:36.92 | 0.3 | undecidable | manual | S | 13 | 30.3474 | 50 | -0.2 | 70 |
IV.TOLF.HHZ. | 2021-04-14T23:51:36.98 | 3.0 | undecidable | manual | P | -9.22 | 0 | |||
IV.MMO1.EHZ. | 2021-04-14T23:51:33.59 | 0.3 | undecidable | manual | S | 64 | 18.7701 | 118 | -0.15 | 73 |
IV.CSP1.EHZ. | 2021-04-14T23:51:32.55 | 0.6 | positive | manual | P | 13 | 30.3474 | 50 | -0.02 | 49 |
IV.FDMO.HHE. | 2021-04-14T23:51:31.52 | 0.3 | undecidable | manual | P | 354 | 23.6541 | 113 | 0.03 | 74 |
IV.MC2.EHZ. | 2021-04-14T23:51:31.66 | 0.3 | undecidable | manual | S | 30 | 11.0778 | 132 | 0.09 | 74 |
IV.MMO1.EHZ. | 2021-04-14T23:51:30.67 | 0.6 | undecidable | manual | P | 64 | 18.7701 | 118 | 0.06 | 49 |
IV.MC2.EHZ. | 2021-04-14T23:51:29.67 | 0.1 | undecidable | manual | P | 30 | 11.0778 | 132 | 0.31 | 95 |
IV.NRCA.HHZ. | 2021-04-14T23:51:29.58 | 0.1 | undecidable | manual | S | 335 | 1.0989 | 174 | -0.31 | 97 |
IV.NRCA.HHZ. | 2021-04-14T23:51:28.52 | 0.1 | undecidable | manual | P | 335 | 1.0989 | 174 | 0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.0 | 0.0002085 | 0.14 | AML | other | m | 2021-04-14T23:51:29.70 |
IV.NRCA.HHN. | ML:0.8 | 0.000104 | 0.68 | AML | other | m | 2021-04-14T23:51:30.72 |
IV.NRCA.HNE. | ML:1.0 | 0.0002006143 | 0.1408 | AML | other | m | 2021-04-14T23:51:29.77 |
IV.NRCA.HNN. | ML:0.9 | 0.00014742065 | 0.4608 | AML | other | m | 2021-04-14T23:51:30.09 |