A magnitude ML 1.1 earthquake occured in region: 5 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7940, 13.1610 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 | 11 | 281 | 5238 |
Arquata del Tronto | AP | 11 | 1178 | 6416 |
Accumoli | RI | 13 | 667 | 7083 |
Preci | PG | 14 | 724 | 7807 |
Cascia | PG | 15 | 3217 | 11024 |
Montegallo | AP | 15 | 523 | 11547 |
Visso | MC | 16 | 1107 | 12654 |
Ussita | MC | 17 | 444 | 13098 |
Montemonaco | AP | 18 | 604 | 13702 |
Cittareale | RI | 20 | 482 | 14184 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-08-26 18:47:42 |
42.7942 | 13.161 | 11 | 2021-08-26 19:20:08 |
Sala Sismica INGV-Roma | 94675581 |
Field | Value |
---|---|
Time (UTC) | 2021-08-26 18:47:42 ± 0.05 |
Latitude | 42.7942 ± 0.0018 |
Longitude | 13.1610 ± 0.0037 |
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 | 94675581 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 320 |
Semi-minor axis of confidence ellipse (meter) | 196 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 66 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 320.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 61 |
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) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.11871 |
Epicentral distance of station farthest from the epicenter (degree) | 0.54589 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 94675581 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-26 19:20:08 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ATCC.EHZ. | 2021-08-26T18:48:01.91 | 0.6 | undecidable | manual | S | 316 | 60.5949 | 50 | 0.71 | 40 |
IV.ASSB.HHZ. | 2021-08-26T18:47:58.04 | 0.6 | undecidable | manual | S | 304 | 49.2174 | 50 | -0.13 | 49 |
IV.MML1.EHZ. | 2021-08-26T18:47:55.36 | 0.6 | undecidable | manual | S | 337 | 38.628 | 50 | 0.03 | 50 |
IV.TERO.HHZ. | 2021-08-26T18:47:55.78 | 0.6 | undecidable | manual | S | 118 | 40.8258 | 50 | -0.13 | 49 |
IV.CSP1.EHZ. | 2021-08-26T18:47:53.90 | 0.6 | undecidable | manual | S | 6 | 33.2445 | 50 | 0.01 | 51 |
IV.ATCC.EHZ. | 2021-08-26T18:47:53.42 | 0.6 | negative | manual | P | 316 | 60.5949 | 50 | 0.13 | 47 |
IV.RM33.EHZ. | 2021-08-26T18:47:53.76 | 0.3 | undecidable | manual | S | 172 | 31.9458 | 50 | 0.21 | 74 |
IV.FDMO.HHZ. | 2021-08-26T18:47:52.23 | 0.3 | undecidable | manual | S | 347 | 27.5502 | 50 | -0.15 | 75 |
IV.GAVE.EHZ. | 2021-08-26T18:47:51.27 | 0.6 | undecidable | manual | S | 243 | 24.4533 | 50 | -0.29 | 49 |
IV.ASSB.HHZ. | 2021-08-26T18:47:51.53 | 0.3 | negative | manual | P | 304 | 49.2174 | 50 | -0.01 | 74 |
IV.SMA1.EHZ. | 2021-08-26T18:47:51.31 | 0.6 | undecidable | manual | S | 142 | 23.0547 | 50 | 0.14 | 51 |
IV.LNSS.HHZ. | 2021-08-26T18:47:51.12 | 0.6 | undecidable | manual | S | 205 | 23.3544 | 50 | -0.15 | 51 |
IV.MTRA.EHZ. | 2021-08-26T18:47:50.18 | 0.6 | undecidable | manual | S | 102 | 19.6692 | 119 | -0.08 | 52 |
IV.TERO.HHZ. | 2021-08-26T18:47:50.18 | 0.6 | undecidable | manual | P | 118 | 40.8258 | 50 | -0.06 | 50 |
IV.MMO1.EHZ. | 2021-08-26T18:47:49.52 | 0.6 | undecidable | manual | S | 49 | 17.871 | 121 | -0.2 | 51 |
IV.MML1.EHZ. | 2021-08-26T18:47:49.96 | 0.6 | negative | manual | P | 337 | 38.628 | 50 | 0.06 | 50 |
IV.MC2.EHZ. | 2021-08-26T18:47:48.44 | 0.6 | undecidable | manual | S | 10 | 13.1757 | 129 | 0.04 | 53 |
IV.RM33.EHZ. | 2021-08-26T18:47:48.93 | 1.0 | positive | manual | P | 172 | 31.9458 | 50 | 0.06 | 25 |
IV.CSP1.EHZ. | 2021-08-26T18:47:48.95 | 0.1 | positive | manual | P | 6 | 33.2445 | 50 | -0.12 | 100 |
IV.FDMO.HHZ. | 2021-08-26T18:47:48.09 | 0.6 | positive | manual | P | 347 | 27.5502 | 50 | -0.1 | 51 |
IV.LNSS.HHZ. | 2021-08-26T18:47:47.56 | 0.3 | negative | manual | P | 205 | 23.3544 | 50 | 0 | 78 |
IV.GAVE.EHZ. | 2021-08-26T18:47:47.59 | 0.3 | undecidable | manual | P | 243 | 24.4533 | 50 | -0.14 | 76 |
IV.SMA1.EHZ. | 2021-08-26T18:47:47.60 | 0.6 | positive | manual | P | 142 | 23.0547 | 50 | 0.1 | 51 |
IV.MTRA.EHZ. | 2021-08-26T18:47:47.04 | 0.6 | undecidable | manual | P | 102 | 19.6692 | 119 | 0.06 | 52 |
IV.MMO1.EHZ. | 2021-08-26T18:47:46.81 | 0.6 | positive | manual | P | 49 | 17.871 | 121 | 0.15 | 51 |
IV.MC2.EHZ. | 2021-08-26T18:47:45.99 | 0.3 | undecidable | manual | P | 10 | 13.1757 | 129 | 0.09 | 78 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:1.5 | 0.00022600000000000002 | 1.22 | AML | other | m | 2021-08-26T18:47:50.95 |
IV.MTRA.EHN. | ML:1.5 | 0.000236 | 0.3 | AML | other | m | 2021-08-26T18:47:50.50 |
IV.LNSS.HHN. | ML:1.6 | 0.00027649999999999994 | 0.84 | AML | other | m | 2021-08-26T18:47:51.34 |
IV.LNSS.HHE. | ML:1.7 | 0.000307 | 0.3 | AML | other | m | 2021-08-26T18:47:51.50 |
IV.SMA1.EHE. | ML:1.1 | 0.00007400000000000001 | 0.48 | AML | other | m | 2021-08-26T18:47:51.99 |
IV.GAVE.EHE. | ML:1.3 | 0.00012065 | 0.24 | AML | other | m | 2021-08-26T18:47:52.10 |
IV.GAVE.EHN. | ML:1.4 | 0.000141 | 0.64 | AML | other | m | 2021-08-26T18:47:52.54 |
IV.FDMO.HHN. | ML:0.8 | 0.000031899999999999996 | 0.96 | AML | other | m | 2021-08-26T18:47:53.69 |
IV.FDMO.HHE. | ML:0.8 | 0.00003485000000000001 | 0.18 | AML | other | m | 2021-08-26T18:47:54.29 |
IV.RM33.EHN. | ML:0.9 | 0.0000356 | 1.02 | AML | other | m | 2021-08-26T18:47:54.95 |
IV.RM33.EHE. | ML:0.9 | 0.000034500000000000005 | 0.42 | AML | other | m | 2021-08-26T18:47:55.51 |
IV.MML1.EHN. | ML:0.9 | 0.000031049999999999996 | 1.22 | AML | other | m | 2021-08-26T18:47:55.72 |
IV.MML1.EHE. | ML:0.8 | 0.000022499999999999998 | 1.78 | AML | other | m | 2021-08-26T18:47:55.01 |
IV.SMA1.EHN. | ML:1.0 | 0.000067 | 1.38 | AML | other | m | 2021-08-26T18:47:55.96 |
IV.ASSB.HHN. | ML:1.0 | 0.000027499999999999998 | 0.78 | AML | other | m | 2021-08-26T18:47:58.69 |
IV.ASSB.HHE. | ML:0.9 | 0.0000224 | 1.14 | AML | other | m | 2021-08-26T18:47:59.31 |