A magnitude ML 0.8 earthquake occured in region: 6 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8440, 13.1010 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 | 6 | 4957 | 4957 |
Preci | PG | 6 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 7 | 281 | 5962 |
Visso | MC | 10 | 1107 | 7069 |
Ussita | MC | 12 | 444 | 7513 |
Sellano | PG | 15 | 1079 | 8592 |
Cerreto di Spoleto | PG | 15 | 1075 | 9667 |
Cascia | PG | 16 | 3217 | 12884 |
Arquata del Tronto | AP | 18 | 1178 | 14062 |
Monte Cavallo | MC | 19 | 145 | 14207 |
Montegallo | AP | 19 | 523 | 14730 |
Montemonaco | AP | 20 | 604 | 15334 |
Bolognola | MC | 20 | 142 | 15476 |
Poggiodomo | PG | 20 | 117 | 15593 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2023-04-17 16:05:25 |
42.8437 | 13.1008 | 13 | 2023-04-17 16:16:13 |
Sala Sismica INGV-Roma | 116464551 |
Field | Value |
---|---|
Time (UTC) | 2023-04-17 16:05:25 ± 0.12 |
Latitude | 42.8437 ± 0.0090 |
Longitude | 13.1008 ± 0.0086 |
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 | 116464551 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 922 |
Semi-minor axis of confidence ellipse (meter) | 614 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 151 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 920.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 110 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.01439 |
Epicentral distance of station farthest from the epicenter (degree) | 0.44426 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 116464551 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-17 16:16:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CESI.HHZ. | 2023-04-17T16:05:34.61 | 0.3 | undecidable | manual | S | 318 | 23.9538 | 101 | -0.22 | 69 |
IV.CESX.HHE. | 2023-04-17T16:05:34.67 | 0.1 | undecidable | manual | P | 238 | 49.3173 | 93 | -0.29 | 85 |
IV.MMO1.EHZ. | 2023-04-17T16:05:33.48 | 0.1 | undecidable | manual | S | 71 | 19.3695 | 106 | -0.16 | 94 |
7F.SIB2.EHZ. | 2023-04-17T16:05:32.88 | 0.3 | undecidable | manual | S | 72 | 17.2716 | 110 | -0.24 | 70 |
7F.SIB1.EHZ. | 2023-04-17T16:05:32.51 | 0.1 | undecidable | manual | S | 68 | 14.874 | 116 | -0.01 | 98 |
7F.SIB3.EHZ. | 2023-04-17T16:05:31.95 | 0.6 | undecidable | manual | S | 76 | 14.1747 | 118 | -0.41 | 45 |
IV.CESI.HHZ. | 2023-04-17T16:05:31.24 | 0.1 | undecidable | manual | P | 318 | 23.9538 | 101 | 0.17 | 94 |
IV.MMO1.EHZ. | 2023-04-17T16:05:30.50 | 0.1 | undecidable | manual | P | 71 | 19.3695 | 106 | 0.12 | 96 |
IV.NRCA.HHZ. | 2023-04-17T16:05:30.31 | 0.1 | undecidable | manual | S | 136 | 1.5984 | 172 | -0.06 | 100 |
7F.SIB2.EHZ. | 2023-04-17T16:05:30.18 | 0.1 | undecidable | manual | P | 72 | 17.2716 | 110 | 0.1 | 96 |
7F.SIB1.EHZ. | 2023-04-17T16:05:29.90 | 0.1 | undecidable | manual | P | 68 | 14.874 | 116 | 0.17 | 95 |
7F.SIB3.EHZ. | 2023-04-17T16:05:29.74 | 0.1 | undecidable | manual | P | 76 | 14.1747 | 118 | 0.1 | 97 |
IV.NRCA.HHZ. | 2023-04-17T16:05:28.88 | 0.1 | undecidable | manual | P | 136 | 1.5984 | 172 | 0.39 | 93 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:0.8 | 0.00008330000000000002 | 0.14 | AML | other | m | 2023-04-17T16:05:30.36 |
IV.NRCA.HHE. | ML:0.7 | 0.0000693 | 1.06 | AML | other | m | 2023-04-17T16:05:30.38 |