A magnitude ML 1.6 earthquake occured in region: 4 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7830, 13.1390 at 8 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
Cascia | PG | 12 | 3217 | 8174 |
Castelsantangelo sul Nera | MC | 13 | 281 | 8455 |
Arquata del Tronto | AP | 13 | 1178 | 9633 |
Accumoli | RI | 13 | 667 | 10300 |
Preci | PG | 14 | 724 | 11024 |
Visso | MC | 17 | 1107 | 12131 |
Montegallo | AP | 17 | 523 | 12654 |
Ussita | MC | 18 | 444 | 13098 |
Cittareale | RI | 18 | 482 | 13580 |
Poggiodomo | PG | 18 | 117 | 13697 |
Cerreto di Spoleto | PG | 19 | 1075 | 14772 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-08-20 14:33:21 |
42.7827 | 13.1393 | 8 | 2020-11-19 12:37:05 |
Bollettino Sismico Italiano INGV | 83930521 |
Reviewed Rev100 |
ML 1.5 | 2020-08-20 14:33:21 |
42.7842 | 13.1383 | 8 | 2020-08-20 14:39:49 |
Sala Sismica INGV-Roma | 82176251 |
Field | Value |
---|---|
Time (UTC) | 2020-08-20 14:33:21 ± 0.06 |
Latitude | 42.7827 ± 0.0036 |
Longitude | 13.1393 ± 0.0049 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 83930521 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 401 |
Semi-minor axis of confidence ellipse (meter) | 321 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 86 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 400.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 64 |
Number of associated phases, regardless of their use for origin computation | 37 |
Number of defining phases | 37 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.05396 |
Epicentral distance of station farthest from the epicenter (degree) | 0.65740 |
Number of stations at which the event was observed | 20 |
Number of stations from which data was used for origin computation | 20 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 22 |
Type of magnitude | ML |
Reference to an origin | 83930521 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-10-20 01:15:00 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.1 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 82176251 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-08-20 14:39:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.EL6.EHZ. | 2020-08-20T14:33:41.20 | 0.6 | undecidable | manual | S | 357 | 60.6948 | 50 | 0.5 | 42 |
IV.ASSB.HHZ. | 2020-08-20T14:33:37.60 | 0.6 | undecidable | manual | S | 307 | 48.5181 | 50 | 0.15 | 47 |
IV.TERO.HHZ. | 2020-08-20T14:33:35.10 | 0.3 | undecidable | manual | S | 115 | 41.8248 | 50 | -0.55 | 65 |
IV.MML1.HNE. | 2020-08-20T14:33:35.81 | 0.3 | undecidable | manual | S | 340 | 39.1275 | 50 | 0.87 | 57 |
IV.MURB.HHZ. | 2020-08-20T14:33:34.68 | 0.3 | undecidable | manual | P | 317 | 72.9714 | 50 | 0.24 | 66 |
IV.MF5.EHZ. | 2020-08-20T14:33:34.10 | 0.6 | undecidable | manual | S | 49 | 34.5432 | 50 | 0.38 | 46 |
IV.PF6.EHN. | 2020-08-20T14:33:34.87 | 0.6 | undecidable | manual | S | 6 | 39.627 | 50 | -0.2 | 47 |
IV.CSP1.EHZ. | 2020-08-20T14:33:33.40 | 0.6 | undecidable | manual | S | 9 | 34.743 | 50 | -0.36 | 46 |
IV.CESI.HHZ. | 2020-08-20T14:33:32.50 | 0.6 | undecidable | manual | S | 322 | 31.1466 | 105 | -0.12 | 49 |
IV.EL6.EHZ. | 2020-08-20T14:33:32.52 | 0.3 | undecidable | manual | P | 357 | 60.6948 | 50 | -0.03 | 70 |
IV.RM33.EHZ. | 2020-08-20T14:33:32.20 | 0.6 | undecidable | manual | S | 169 | 30.9468 | 105 | -0.34 | 46 |
IV.SMA1.EHZ. | 2020-08-20T14:33:30.00 | 0.6 | undecidable | manual | S | 137 | 23.2545 | 110 | 0.02 | 50 |
IV.TERO.HHZ. | 2020-08-20T14:33:30.04 | 0.6 | undecidable | manual | P | 115 | 41.8248 | 50 | 0.4 | 45 |
IV.ASSB.HHZ. | 2020-08-20T14:33:30.56 | 0.1 | undecidable | manual | P | 307 | 48.5181 | 50 | -0.12 | 94 |
IV.LNSS.HHZ. | 2020-08-20T14:33:29.40 | 0.6 | undecidable | manual | S | 202 | 21.5673 | 111 | -0.02 | 50 |
IV.GAVE.EHZ. | 2020-08-20T14:33:29.80 | 0.6 | undecidable | manual | S | 243 | 22.3554 | 110 | 0.11 | 49 |
IV.T1299.HNE. | 2020-08-20T14:33:29.60 | 0.3 | undecidable | manual | S | 145 | 20.1687 | 112 | 0.62 | 65 |
IV.MTRA.EHZ. | 2020-08-20T14:33:29.20 | 0.6 | undecidable | manual | S | 98 | 21.1677 | 111 | -0.1 | 50 |
IV.PF6.EHN. | 2020-08-20T14:33:28.95 | 0.1 | positive | manual | P | 6 | 39.627 | 50 | -0.35 | 91 |
IV.MML1.HNE. | 2020-08-20T14:33:28.46 | 0.3 | undecidable | manual | P | 340 | 39.1275 | 50 | -0.76 | 60 |
IV.MF5.EHZ. | 2020-08-20T14:33:28.57 | 0.6 | undecidable | manual | P | 49 | 34.5432 | 50 | 0.05 | 49 |
IV.CSP1.EHZ. | 2020-08-20T14:33:28.28 | 1.0 | negative | manual | P | 9 | 34.743 | 50 | -0.26 | 23 |
IV.MMO1.EHE. | 2020-08-20T14:33:28.70 | 0.6 | undecidable | manual | S | 50 | 19.9689 | 113 | -0.23 | 48 |
IV.CESI.HHZ. | 2020-08-20T14:33:27.87 | 1.0 | undecidable | manual | P | 322 | 31.1466 | 105 | -0.01 | 25 |
IV.MC2.EHZ. | 2020-08-20T14:33:27.80 | 0.6 | undecidable | manual | S | 16 | 14.874 | 119 | 0.48 | 46 |
IV.RM33.EHZ. | 2020-08-20T14:33:27.56 | 0.1 | negative | manual | P | 169 | 30.9468 | 105 | -0.28 | 94 |
IT.MTCL.HGE. | 2020-08-20T14:33:26.80 | 0.6 | undecidable | manual | P | 334 | 26.0517 | 108 | -0.1 | 49 |
IV.GAVE.EHZ. | 2020-08-20T14:33:26.38 | 0.6 | negative | manual | P | 243 | 22.3554 | 110 | 0.18 | 49 |
IV.T1299.HNE. | 2020-08-20T14:33:26.03 | 0.3 | undecidable | manual | P | 145 | 20.1687 | 112 | 0.25 | 72 |
IV.FEMA.HNE. | 2020-08-20T14:33:26.63 | 1.0 | undecidable | manual | P | 340 | 21.1677 | 111 | 0.65 | 22 |
IV.MTRA.EHZ. | 2020-08-20T14:33:26.16 | 0.1 | undecidable | manual | P | 98 | 21.1677 | 111 | 0.19 | 97 |
IV.SMA1.EHZ. | 2020-08-20T14:33:26.47 | 0.6 | undecidable | manual | P | 137 | 23.2545 | 110 | 0.11 | 49 |
IV.LNSS.HHZ. | 2020-08-20T14:33:26.09 | 0.6 | undecidable | manual | P | 202 | 21.5673 | 111 | 0.05 | 50 |
IV.MC2.EHZ. | 2020-08-20T14:33:25.10 | 0.1 | negative | manual | P | 16 | 14.874 | 119 | 0.28 | 97 |
IV.MMO1.EHE. | 2020-08-20T14:33:25.52 | 0.3 | undecidable | manual | P | 50 | 19.9689 | 113 | -0.24 | 73 |
IV.NRCA.HNZ. | 2020-08-20T14:33:24.40 | 0.6 | undecidable | manual | S | 340 | 5.994 | 144 | -0.58 | 45 |
IV.NRCA.HNZ. | 2020-08-20T14:33:23.28 | 0.1 | negative | manual | P | 340 | 5.994 | 144 | -0.19 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNE. | ML:2.3 | 0.003375 | 1.9 | AML | other | m | 2020-08-20T14:33:25.03 |
IV.NRCA.HHE. | ML:2.3 | 0.003855 | 1.9 | AML | other | m | 2020-08-20T14:33:25.03 |
IV.NRCA.HNN. | ML:2.2 | 0.002815 | 0.1 | AML | other | m | 2020-08-20T14:33:25.34 |
IV.NRCA.HHN. | ML:2.2 | 0.003065 | 0.12 | AML | other | m | 2020-08-20T14:33:25.34 |
IV.MTRA.EHN. | ML:1.6 | 0.0003085 | 0.46 | AML | other | m | 2020-08-20T14:33:30.34 |
IV.GAVE.EHN. | ML:1.6 | 0.00029299999999999997 | 0.2 | AML | other | m | 2020-08-20T14:33:30.53 |
IV.LNSS.HHN. | ML:1.6 | 0.00029749999999999997 | 0.2 | AML | other | m | 2020-08-20T14:33:31.40 |
IV.LNSS.HHE. | ML:1.6 | 0.000309 | 0.56 | AML | other | m | 2020-08-20T14:33:31.35 |
IV.MTRA.EHE. | ML:1.8 | 0.00041049999999999995 | 1.58 | AML | other | m | 2020-08-20T14:33:31.00 |
IV.GAVE.EHE. | ML:1.7 | 0.00034050000000000004 | 0.2 | AML | other | m | 2020-08-20T14:33:32.27 |
IV.RM33.EHN. | ML:1.5 | 0.000166 | 0.36 | AML | other | m | 2020-08-20T14:33:32.79 |
IV.SMA1.EHN. | ML:1.5 | 0.000192 | 0.42 | AML | other | m | 2020-08-20T14:33:32.61 |
IV.SMA1.EHE. | ML:1.6 | 0.0002285 | 0.44 | AML | other | m | 2020-08-20T14:33:33.26 |
IV.RM33.EHE. | ML:1.6 | 0.0001885 | 0.18 | AML | other | m | 2020-08-20T14:33:33.61 |
IV.MF5.EHN. | ML:1.4 | 0.0001022 | 1.5 | AML | other | m | 2020-08-20T14:33:35.16 |
IV.TERO.HHN. | ML:1.3 | 0.0000589 | 1.38 | AML | other | m | 2020-08-20T14:33:36.80 |
IV.ASSB.HHE. | ML:1.5 | 0.00008385 | 0.88 | AML | other | m | 2020-08-20T14:33:38.05 |
IV.MF5.EHE. | ML:1.5 | 0.00012014999999999999 | 0.48 | AML | other | m | 2020-08-20T14:33:38.68 |
IV.TERO.HHE. | ML:1.3 | 0.000060650000000000004 | 0.4 | AML | other | m | 2020-08-20T14:33:38.75 |
IV.ASSB.HHN. | ML:1.5 | 0.00008104999999999999 | 1.4 | AML | other | m | 2020-08-20T14:33:39.85 |
IV.MURB.HHN. | ML:1.6 | 0.00006945000000000001 | 0.28 | AML | other | m | 2020-08-20T14:33:47.92 |
IV.MURB.HHE. | ML:1.7 | 0.0000748 | 0.42 | AML | other | m | 2020-08-20T14:33:49.75 |