A magnitude ML 0.9 earthquake occured in region: 4 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8240, 13.0590 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 |
Preci | PG | 6 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 11 | 281 | 5962 |
Cerreto di Spoleto | PG | 12 | 1075 | 7037 |
Cascia | PG | 12 | 3217 | 10254 |
Visso | MC | 12 | 1107 | 11361 |
Sellano | PG | 13 | 1079 | 12440 |
Ussita | MC | 15 | 444 | 12884 |
Poggiodomo | PG | 16 | 117 | 13001 |
Vallo di Nera | PG | 17 | 364 | 13365 |
Monte Cavallo | MC | 20 | 145 | 13510 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-09-06 20:44:48 |
42.824 | 13.0588 | 10 | 2021-09-06 21:03:13 |
Sala Sismica INGV-Roma | 95123121 |
Field | Value |
---|---|
Time (UTC) | 2021-09-06 20:44:48 ± 0.05 |
Latitude | 42.8240 ± 0.0018 |
Longitude | 13.0588 ± 0.0037 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95123121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 334 |
Semi-minor axis of confidence ellipse (meter) | 105 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 275 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 105 |
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) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.04137 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33455 |
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 | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 95123121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-06 21:03:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GUMA.HHZ. | 2021-09-06T20:45:00.71 | 0.1 | undecidable | manual | S | 40 | 34.743 | 50 | 0.37 | 88 |
IV.SMA1.EHZ. | 2021-09-06T20:44:59.23 | 0.6 | undecidable | manual | S | 134 | 31.1466 | 50 | -0.16 | 46 |
IV.MML1.EHZ. | 2021-09-06T20:44:59.87 | 0.1 | undecidable | manual | S | 348 | 32.8449 | 50 | 0.01 | 95 |
IV.CSP1.EHZ. | 2021-09-06T20:44:59.47 | 0.1 | undecidable | manual | S | 22 | 31.9458 | 50 | -0.15 | 93 |
IV.FDMO.HHZ. | 2021-09-06T20:44:57.09 | 0.1 | undecidable | manual | S | 6 | 23.6541 | 113 | -0.26 | 92 |
IV.CESI.HHZ. | 2021-09-06T20:44:57.30 | 0.1 | undecidable | manual | S | 328 | 23.6541 | 113 | -0.05 | 96 |
IV.LNSS.HHZ. | 2021-09-06T20:44:57.47 | 0.1 | undecidable | manual | S | 184 | 24.5532 | 112 | -0.17 | 94 |
IV.GAVE.EHZ. | 2021-09-06T20:44:56.23 | 0.1 | undecidable | manual | S | 223 | 19.869 | 117 | 0.08 | 96 |
IV.MMO1.EHZ. | 2021-09-06T20:44:56.86 | 0.1 | undecidable | manual | S | 69 | 23.3544 | 113 | -0.38 | 90 |
IT.MTCL.HGE. | 2021-09-06T20:44:55.88 | 0.1 | undecidable | manual | S | 346 | 19.4694 | 118 | -0.14 | 95 |
IV.RM33.EHZ. | 2021-09-06T20:44:55.57 | 0.6 | undecidable | manual | P | 160 | 37.1295 | 50 | -0.11 | 46 |
IV.GUMA.HHZ. | 2021-09-06T20:44:55.53 | 1.0 | negative | manual | P | 40 | 34.743 | 50 | 0.23 | 23 |
IV.CSP1.EHZ. | 2021-09-06T20:44:54.72 | 1.0 | undecidable | manual | P | 22 | 31.9458 | 50 | -0.17 | 23 |
IV.MC2.EHZ. | 2021-09-06T20:44:54.83 | 0.1 | undecidable | manual | S | 47 | 14.3745 | 125 | 0.32 | 92 |
IV.SMA1.EHZ. | 2021-09-06T20:44:54.79 | 1.0 | undecidable | manual | P | 134 | 31.1466 | 50 | 0.04 | 24 |
IV.MML1.EHZ. | 2021-09-06T20:44:54.87 | 1.0 | undecidable | manual | P | 348 | 32.8449 | 50 | -0.15 | 23 |
IV.MMO1.EHZ. | 2021-09-06T20:44:53.39 | 0.6 | negative | manual | P | 69 | 23.3544 | 113 | -0.12 | 47 |
IV.FDMO.HHZ. | 2021-09-06T20:44:53.47 | 0.3 | positive | manual | P | 6 | 23.6541 | 113 | -0.11 | 71 |
IV.CESI.HHZ. | 2021-09-06T20:44:53.52 | 0.6 | undecidable | manual | P | 328 | 23.6541 | 113 | -0.05 | 48 |
IV.GAVE.EHZ. | 2021-09-06T20:44:53.14 | 0.6 | negative | manual | P | 223 | 19.869 | 117 | 0.26 | 46 |
IV.LNSS.HHZ. | 2021-09-06T20:44:53.67 | 0.1 | undecidable | manual | P | 184 | 24.5532 | 112 | -0.07 | 96 |
IV.NRCA.HHZ. | 2021-09-06T20:44:52.30 | 0.1 | undecidable | manual | S | 77 | 4.5954 | 155 | 0.02 | 100 |
IT.MTCL.HGE. | 2021-09-06T20:44:52.78 | 0.1 | undecidable | manual | P | 346 | 19.4694 | 118 | -0.03 | 97 |
IV.MC2.EHZ. | 2021-09-06T20:44:52.24 | 0.6 | undecidable | manual | P | 47 | 14.3745 | 125 | 0.31 | 46 |
IV.FEMA.HNE. | 2021-09-06T20:44:52.39 | 0.3 | undecidable | manual | P | 357 | 15.3735 | 123 | 0.29 | 70 |
IV.NRCA.HHZ. | 2021-09-06T20:44:50.86 | 0.1 | undecidable | manual | P | 77 | 4.5954 | 155 | 0.21 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.4 | 0.0004773719 | 0.0512 | AML | other | m | 2021-09-06T20:44:52.34 |
IV.NRCA.HHE. | ML:1.2 | 0.00029949999999999996 | 0.14 | AML | other | m | 2021-09-06T20:44:53.32 |
IV.GAVE.EHN. | ML:1.0 | 0.00007384941999999999 | 0.1152 | AML | other | m | 2021-09-06T20:44:56.63 |
IV.GAVE.EHE. | ML:1.0 | 0.000072760985 | 0.128 | AML | other | m | 2021-09-06T20:44:56.60 |
IV.FDMO.HHN. | ML:0.8 | 0.000042030095 | 0.1408 | AML | other | m | 2021-09-06T20:44:57.38 |
IV.CESI.HHE. | ML:0.7 | 0.00003145 | 0.16 | AML | other | m | 2021-09-06T20:44:57.44 |
IV.FDMO.HHE. | ML:0.9 | 0.000046740300000000004 | 0.1024 | AML | other | m | 2021-09-06T20:44:57.60 |
IV.LNSS.HHN. | ML:1.0 | 0.00006484999999999999 | 0.2 | AML | other | m | 2021-09-06T20:44:57.75 |
IV.LNSS.HHE. | ML:1.1 | 0.000076 | 0.14 | AML | other | m | 2021-09-06T20:44:57.84 |
IV.CESI.HHN. | ML:0.8 | 0.000039000000000000006 | 0.76 | AML | other | m | 2021-09-06T20:44:58.69 |
IV.SMA1.EHN. | ML:0.7 | 0.0000264712 | 0.2432 | AML | other | m | 2021-09-06T20:45:02.23 |
IV.SMA1.EHE. | ML:0.7 | 0.000025057465 | 0.4608 | AML | other | m | 2021-09-06T20:45:03.42 |
IV.NRCA.HNE. | ML:1.2 | 0.00027917775 | 0.1408 | AML | other | m | 2021-09-06T20:44:53.38 |
IV.NRCA.HNN. | ML:1.4 | 0.00041720985 | 0.064 | AML | other | m | 2021-09-06T20:44:52.33 |
IV.CESI.HNE. | ML:1.2 | 0.00010194205000000001 | 0.8192 | AML | other | m | 2021-09-06T20:44:56.26 |
IV.CSP1.EHN. | ML:1.1 | 0.000061750685 | 0.3072 | AML | other | m | 2021-09-06T20:45:01.06 |
IV.MML1.EHE. | ML:0.7 | 0.000019951228000000003 | 0.192 | AML | other | m | 2021-09-06T20:45:01.16 |
IV.MML1.EHN. | ML:0.4 | 0.000010343206000000001 | 0.256 | AML | other | m | 2021-09-06T20:45:00.86 |
IV.RM33.EHE. | ML:0.6 | 0.000016075355 | 0.1536 | AML | other | m | 2021-09-06T20:45:03.35 |
IV.RM33.EHN. | ML:0.4 | 0.000012061241500000001 | 0.1024 | AML | other | m | 2021-09-06T20:45:01.84 |