A magnitude ML 1.1 earthquake occured in region: 6 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.8240, 13.1520 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 | 6 | 4957 | 4957 |
Castelsantangelo sul Nera | MC | 8 | 281 | 5238 |
Preci | PG | 11 | 724 | 5962 |
Visso | MC | 13 | 1107 | 7069 |
Arquata del Tronto | AP | 13 | 1178 | 8247 |
Ussita | MC | 14 | 444 | 8691 |
Montegallo | AP | 15 | 523 | 9214 |
Cascia | PG | 16 | 3217 | 12431 |
Accumoli | RI | 16 | 667 | 13098 |
Montemonaco | AP | 17 | 604 | 13702 |
Cerreto di Spoleto | PG | 19 | 1075 | 14777 |
Sellano | PG | 20 | 1079 | 15856 |
Bolognola | MC | 20 | 142 | 15998 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2023-04-21 08:50:23 |
42.824 | 13.1525 | 11 | 2023-04-21 09:07:12 |
Sala Sismica INGV-Roma | 116567031 |
Field | Value |
---|---|
Time (UTC) | 2023-04-21 08:50:23 ± 0.05 |
Latitude | 42.8240 ± 0.0036 |
Longitude | 13.1525 ± 0.0049 |
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 | 116567031 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 369 |
Semi-minor axis of confidence ellipse (meter) | 359 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 97 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 370.0 |
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 | 35 |
Number of defining phases | 35 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.02968 |
Epicentral distance of station farthest from the epicenter (degree) | 0.50632 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 18 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.1 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 116567031 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-21 09:07:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.EL6.EHZ. | 2023-04-21T08:50:42.01 | 1.0 | undecidable | manual | S | 356 | 56.1993 | 50 | 0.59 | 20 |
IV.ASSB.HHZ. | 2023-04-21T08:50:39.07 | 0.6 | undecidable | manual | S | 301 | 46.8198 | 50 | 0.15 | 46 |
IV.TERO.HHZ. | 2023-04-21T08:50:37.54 | 0.6 | undecidable | manual | S | 121 | 43.0236 | 50 | -0.36 | 44 |
IV.MF5.EHZ. | 2023-04-21T08:50:35.51 | 0.3 | undecidable | manual | S | 54 | 30.8469 | 50 | 0.85 | 57 |
IV.MML1.EHZ. | 2023-04-21T08:50:35.73 | 0.6 | undecidable | manual | S | 336 | 35.3424 | 50 | -0.11 | 46 |
IV.CSP1.EHZ. | 2023-04-21T08:50:34.33 | 0.6 | undecidable | manual | S | 8 | 30.0477 | 50 | -0.1 | 47 |
IV.EL6.EHZ. | 2023-04-21T08:50:34.38 | 0.1 | undecidable | manual | P | 356 | 56.1993 | 50 | 0.34 | 87 |
IV.GAVE.EHN. | 2023-04-21T08:50:33.42 | 0.6 | undecidable | manual | S | 235 | 25.6521 | 50 | 0.17 | 48 |
IV.LNSS.HHZ. | 2023-04-21T08:50:33.39 | 0.6 | undecidable | manual | S | 200 | 26.1516 | 50 | -0.01 | 48 |
IV.CESI.HHZ. | 2023-04-21T08:50:33.90 | 0.6 | undecidable | manual | S | 315 | 28.4493 | 50 | -0.1 | 47 |
IT.MTCL.HGE. | 2023-04-21T08:50:32.24 | 0.6 | undecidable | manual | S | 327 | 22.5552 | 50 | -0.2 | 46 |
IV.ASSB.HHZ. | 2023-04-21T08:50:32.58 | 0.6 | undecidable | manual | P | 301 | 46.8198 | 50 | -0.02 | 46 |
IV.FDMO.HHN. | 2023-04-21T08:50:32.52 | 0.6 | undecidable | manual | S | 347 | 24.1536 | 50 | -0.34 | 45 |
IV.TERO.HHZ. | 2023-04-21T08:50:31.85 | 0.6 | undecidable | manual | P | 121 | 43.0236 | 50 | -0.16 | 46 |
IV.FEMA.HNZ. | 2023-04-21T08:50:31.01 | 0.3 | undecidable | manual | S | 331 | 17.4714 | 50 | -0.06 | 72 |
IV.MMO1.EHZ. | 2023-04-21T08:50:30.61 | 0.3 | undecidable | manual | S | 59 | 16.4724 | 50 | -0.2 | 72 |
IV.MF5.EHZ. | 2023-04-21T08:50:30.64 | 0.3 | undecidable | manual | P | 54 | 30.8469 | 50 | 0.51 | 65 |
7F.SIB2.EHZ. | 2023-04-21T08:50:30.00 | 0.6 | undecidable | manual | S | 59 | 14.3745 | 128 | -0.25 | 48 |
IV.MML1.EHZ. | 2023-04-21T08:50:30.74 | 1.0 | undecidable | manual | P | 336 | 35.3424 | 50 | -0.08 | 23 |
7F.SIB1.EHZ. | 2023-04-21T08:50:29.93 | 0.6 | undecidable | manual | S | 51 | 12.3765 | 132 | 0.22 | 47 |
IV.CESI.HHZ. | 2023-04-21T08:50:29.68 | 0.3 | negative | manual | P | 315 | 28.4493 | 50 | -0.08 | 71 |
IV.SMA1.EHZ. | 2023-04-21T08:50:29.21 | 0.3 | undecidable | manual | P | 145 | 26.1516 | 50 | -0.19 | 70 |
IV.CSP1.EHZ. | 2023-04-21T08:50:29.72 | 0.3 | undecidable | manual | P | 8 | 30.0477 | 50 | -0.28 | 68 |
7F.SIB3.EHZ. | 2023-04-21T08:50:29.29 | 0.6 | undecidable | manual | S | 59 | 11.0778 | 135 | -0.11 | 50 |
IV.GAVE.EHN. | 2023-04-21T08:50:29.51 | 0.1 | undecidable | manual | P | 235 | 25.6521 | 50 | 0.19 | 95 |
IV.LNSS.HHZ. | 2023-04-21T08:50:29.31 | 0.1 | positive | manual | P | 200 | 26.1516 | 50 | -0.1 | 94 |
IV.FDMO.HHN. | 2023-04-21T08:50:28.94 | 0.1 | undecidable | manual | P | 347 | 24.1536 | 50 | -0.16 | 94 |
IT.MTCL.HGE. | 2023-04-21T08:50:28.65 | 0.1 | undecidable | manual | P | 327 | 22.5552 | 50 | -0.2 | 93 |
IV.NRCA.HNZ. | 2023-04-21T08:50:28.18 | 0.6 | undecidable | manual | S | 289 | 3.2967 | 163 | 0.22 | 48 |
IV.FEMA.HNZ. | 2023-04-21T08:50:28.06 | 0.3 | undecidable | manual | P | 331 | 17.4714 | 50 | 0 | 74 |
IV.MMO1.EHZ. | 2023-04-21T08:50:27.82 | 0.1 | undecidable | manual | P | 59 | 16.4724 | 50 | -0.09 | 98 |
7F.SIB2.EHZ. | 2023-04-21T08:50:27.50 | 0.1 | undecidable | manual | P | 59 | 14.3745 | 128 | -0.09 | 98 |
7F.SIB1.EHZ. | 2023-04-21T08:50:27.40 | 0.1 | undecidable | manual | P | 51 | 12.3765 | 132 | 0.12 | 97 |
7F.SIB3.EHZ. | 2023-04-21T08:50:27.07 | 0.1 | undecidable | manual | P | 59 | 11.0778 | 135 | -0.03 | 100 |
IV.NRCA.HNZ. | 2023-04-21T08:50:26.49 | 0.1 | undecidable | manual | P | 289 | 3.2967 | 163 | 0.22 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MMO1.EHE. | ML:1.1 | 0.00011599999999999999 | 0.22 | AML | other | m | 2023-04-21T08:50:30.92 |
IV.MMO1.EHN. | ML:1.2 | 0.000133 | 1.52 | AML | other | m | 2023-04-21T08:50:30.98 |
IV.SMA1.EHE. | ML:1.1 | 0.0000665 | 0.58 | AML | other | m | 2023-04-21T08:50:33.32 |
IV.SMA1.EHN. | ML:1.0 | 0.000050900000000000004 | 0.1 | AML | other | m | 2023-04-21T08:50:33.83 |
IV.LNSS.HHN. | ML:1.1 | 0.00007435 | 0.62 | AML | other | m | 2023-04-21T08:50:34.36 |
IV.LNSS.HHE. | ML:1.0 | 0.000057749999999999994 | 0.16 | AML | other | m | 2023-04-21T08:50:34.90 |
IV.MML1.EHE. | ML:1.0 | 0.000040300000000000004 | 0.58 | AML | other | m | 2023-04-21T08:50:36.62 |
IV.MML1.EHN. | ML:1.1 | 0.000047550000000000004 | 0.18 | AML | other | m | 2023-04-21T08:50:36.89 |
IV.TERO.HHN. | ML:1.0 | 0.00003695 | 0.46 | AML | other | m | 2023-04-21T08:50:38.32 |
IV.TERO.HHE. | ML:1.0 | 0.000028949999999999996 | 0.14 | AML | other | m | 2023-04-21T08:50:38.98 |
IV.ASSB.HHE. | ML:1.0 | 0.000027700000000000002 | 0.28 | AML | other | m | 2023-04-21T08:50:39.41 |
IV.ASSB.HHN. | ML:0.8 | 0.0000206 | 0.52 | AML | other | m | 2023-04-21T08:50:40.27 |
IV.CESI.HHE. | ML:1.0 | 0.00004605919 | 0.16 | AML | other | m | 2023-04-21T08:50:34.78 |
IV.CESI.HHN. | ML:1.1 | 0.000058349504999999995 | 0.1216 | AML | other | m | 2023-04-21T08:50:34.78 |
IV.CSP1.EHE. | ML:1.2 | 0.00007186827 | 0.3008 | AML | other | m | 2023-04-21T08:50:34.66 |
IV.CSP1.EHN. | ML:1.3 | 0.000099112615 | 0.16 | AML | other | m | 2023-04-21T08:50:36.24 |