A magnitude ML 1.7 earthquake occured in region: 3 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8170, 13.0730 at 10 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 | 3 | 4957 | 4957 |
Preci | PG | 7 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 11 | 281 | 5962 |
Cascia | PG | 12 | 3217 | 9179 |
Cerreto di Spoleto | PG | 13 | 1075 | 10254 |
Visso | MC | 13 | 1107 | 11361 |
Sellano | PG | 14 | 1079 | 12440 |
Ussita | MC | 15 | 444 | 12884 |
Poggiodomo | PG | 16 | 117 | 13001 |
Vallo di Nera | PG | 18 | 364 | 13365 |
Arquata del Tronto | AP | 19 | 1178 | 14543 |
Accumoli | RI | 20 | 667 | 15210 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-04-06 18:35:33 |
42.8172 | 13.0727 | 10 | 2021-07-12 16:55:07 |
Bollettino Sismico Italiano INGV | 89360471 |
Reviewed Rev100 |
ML 1.7 | 2021-04-06 18:35:33 |
42.8153 | 13.0768 | 10 | 2021-04-06 18:47:47 |
Sala Sismica INGV-Roma | 88850711 |
Field | Value |
---|---|
Time (UTC) | 2021-04-06 18:35:33 ± 0.04 |
Latitude | 42.8172 ± 0.0018 |
Longitude | 13.0727 ± 0.0037 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 89360471 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 290 |
Semi-minor axis of confidence ellipse (meter) | 110 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 82 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 290.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 42 |
Number of associated phases, regardless of their use for origin computation | 39 |
Number of defining phases | 38 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.51261 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 22 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 88850711 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-06 18:47:47 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 89360471 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-04-22 13:45:57 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASSB.HHN. | 2021-04-06T18:35:47.14 | 0.3 | undecidable | manual | S | 307 | 41.9247 | 50 | 0.15 | 70 |
IV.RM33.EHZ. | 2021-04-06T18:35:45.73 | 0.3 | undecidable | manual | S | 161 | 36.0417 | 50 | 0.29 | 69 |
IV.PF6.EHN. | 2021-04-06T18:35:45.48 | 0.1 | undecidable | manual | S | 15 | 36.9297 | 50 | -0.19 | 94 |
IV.CSP1.EHZ. | 2021-04-06T18:35:44.42 | 0.3 | undecidable | manual | S | 19 | 32.3454 | 50 | -0.01 | 74 |
IV.MML1.HNE. | 2021-04-06T18:35:44.85 | 0.3 | undecidable | manual | S | 346 | 33.8439 | 50 | 0 | 73 |
IV.EL6.EHZ. | 2021-04-06T18:35:43.41 | 0.1 | undecidable | manual | P | 2 | 56.8986 | 50 | -0.04 | 93 |
IV.T1299.HNZ. | 2021-04-06T18:35:42.75 | 0.3 | undecidable | manual | S | 140 | 26.5512 | 50 | -0.13 | 72 |
IV.CESI.HHZ. | 2021-04-06T18:35:42.44 | 0.3 | undecidable | manual | S | 327 | 24.9528 | 50 | -0.01 | 74 |
IV.MTRA.EHZ. | 2021-04-06T18:35:42.95 | 0.3 | undecidable | manual | S | 104 | 27.2505 | 50 | -0.11 | 73 |
IV.LNSS.HHZ. | 2021-04-06T18:35:41.93 | 0.3 | undecidable | manual | S | 186 | 23.8539 | 113 | -0.22 | 71 |
IV.FDMO.HHZ. | 2021-04-06T18:35:41.95 | 0.3 | undecidable | manual | S | 3 | 24.3534 | 113 | -0.35 | 69 |
IV.TERO.HHZ. | 2021-04-06T18:35:41.89 | 0.1 | undecidable | manual | P | 116 | 48.4182 | 50 | -0.24 | 91 |
IV.MOMA.HNN. | 2021-04-06T18:35:41.54 | 0.3 | undecidable | manual | P | 268 | 40.9257 | 50 | 0.56 | 64 |
IV.MMO1.EHZ. | 2021-04-06T18:35:41.70 | 0.3 | undecidable | manual | S | 66 | 22.5552 | 114 | -0.04 | 74 |
IV.MF5.EHZ. | 2021-04-06T18:35:40.76 | 0.1 | undecidable | manual | P | 59 | 36.741 | 50 | 0.42 | 89 |
IV.ASSB.HHN. | 2021-04-06T18:35:40.94 | 0.3 | undecidable | manual | P | 307 | 41.9247 | 50 | -0.2 | 70 |
IT.MTCL.HGZ. | 2021-04-06T18:35:40.83 | 0.3 | undecidable | manual | S | 343 | 20.4684 | 116 | -0.25 | 71 |
IV.ARRO.EHZ. | 2021-04-06T18:35:40.48 | 0.3 | undecidable | manual | P | 224 | 36.3414 | 50 | 0.19 | 70 |
IV.GAVE.EHZ. | 2021-04-06T18:35:40.83 | 0.3 | undecidable | manual | S | 226 | 20.0688 | 117 | -0.12 | 73 |
IV.RM33.EHZ. | 2021-04-06T18:35:40.08 | 0.1 | undecidable | manual | P | 161 | 36.0417 | 50 | -0.16 | 94 |
IV.PF6.EHN. | 2021-04-06T18:35:40.23 | 0.1 | undecidable | manual | P | 15 | 36.9297 | 50 | -0.14 | 95 |
IT.FOPC.HGZ. | 2021-04-06T18:35:40.12 | 3.0 | undecidable | manual | P | -0.07 | 0 | |||
IV.FEMA.HNZ. | 2021-04-06T18:35:39.80 | 0.3 | undecidable | manual | S | 353 | 16.1727 | 122 | 0.02 | 75 |
IV.CSP1.EHZ. | 2021-04-06T18:35:39.68 | 0.1 | undecidable | manual | P | 19 | 32.3454 | 50 | 0.02 | 98 |
IV.SMA1.EHZ. | 2021-04-06T18:35:39.13 | 0.1 | undecidable | manual | P | 134 | 29.748 | 50 | -0.14 | 96 |
IV.MC2.EHZ. | 2021-04-06T18:35:39.60 | 0.3 | undecidable | manual | S | 42 | 14.0748 | 126 | 0.43 | 69 |
IV.MML1.HNE. | 2021-04-06T18:35:39.80 | 0.1 | positive | manual | P | 346 | 33.8439 | 50 | -0.1 | 96 |
IV.CESI.HHZ. | 2021-04-06T18:35:38.48 | 0.1 | positive | manual | P | 327 | 24.9528 | 50 | -0.04 | 99 |
IV.MMO1.EHZ. | 2021-04-06T18:35:38.06 | 0.1 | negative | manual | P | 66 | 22.5552 | 114 | -0.04 | 99 |
IV.MTRA.EHZ. | 2021-04-06T18:35:38.86 | 0.1 | undecidable | manual | P | 104 | 27.2505 | 50 | -0.01 | 99 |
IV.LNSS.HHZ. | 2021-04-06T18:35:38.23 | 0.1 | undecidable | manual | P | 186 | 23.8539 | 113 | -0.12 | 97 |
IV.T1299.HNZ. | 2021-04-06T18:35:38.87 | 0.1 | undecidable | manual | P | 140 | 26.5512 | 50 | 0.1 | 97 |
IV.FDMO.HHZ. | 2021-04-06T18:35:38.35 | 0.1 | undecidable | manual | P | 3 | 24.3534 | 113 | -0.08 | 98 |
IV.GAVE.EHZ. | 2021-04-06T18:35:37.74 | 0.3 | undecidable | manual | P | 226 | 20.0688 | 117 | 0.09 | 74 |
IV.FEMA.HNZ. | 2021-04-06T18:35:37.14 | 0.1 | undecidable | manual | P | 353 | 16.1727 | 122 | 0.17 | 98 |
IT.MTCL.HGZ. | 2021-04-06T18:35:37.70 | 0.1 | undecidable | manual | P | 343 | 20.4684 | 116 | -0.02 | 100 |
IV.MC2.EHZ. | 2021-04-06T18:35:36.93 | 0.1 | negative | manual | P | 42 | 14.0748 | 126 | 0.31 | 95 |
IV.NRCA.HHZ. | 2021-04-06T18:35:36.76 | 0.1 | undecidable | manual | S | 62 | 3.8961 | 159 | -0.15 | 100 |
IV.NRCA.HHZ. | 2021-04-06T18:35:35.52 | 0.1 | negative | manual | P | 62 | 3.8961 | 159 | 0.21 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNN. | ML:2.0 | 0.0018 | 0.14 | AML | other | m | 2021-04-06T18:35:36.83 |
IV.NRCA.HHN. | ML:2.0 | 0.001975 | 0.14 | AML | other | m | 2021-04-06T18:35:36.90 |
IV.NRCA.HNE. | ML:1.9 | 0.001285 | 0.32 | AML | other | m | 2021-04-06T18:35:37.21 |
IV.NRCA.HHE. | ML:1.9 | 0.001295 | 0.08 | AML | other | m | 2021-04-06T18:35:37.20 |
IV.GAVE.EHE. | ML:1.7 | 0.00033899999999999995 | 0.2 | AML | other | m | 2021-04-06T18:35:41.79 |
IV.GAVE.EHN. | ML:1.4 | 0.0001895 | 1 | AML | other | m | 2021-04-06T18:35:41.93 |
IV.FDMO.HHE. | ML:1.6 | 0.00026700000000000004 | 0.16 | AML | other | m | 2021-04-06T18:35:42.17 |
IV.LNSS.HNE. | ML:1.7 | 0.00028182205 | 0.1024 | AML | other | m | 2021-04-06T18:35:42.19 |
IV.FDMO.HHN. | ML:1.6 | 0.00023099999999999998 | 0.24 | AML | other | m | 2021-04-06T18:35:42.18 |
IV.LNSS.HHE. | ML:1.8 | 0.000374 | 0.42 | AML | other | m | 2021-04-06T18:35:42.34 |
IV.LNSS.HHN. | ML:1.7 | 0.0003195 | 0.16 | AML | other | m | 2021-04-06T18:35:42.45 |
IV.LNSS.HNN. | ML:1.7 | 0.0002922429 | 0.1536 | AML | other | m | 2021-04-06T18:35:42.46 |
IV.CESI.HHN. | ML:1.2 | 0.00009957332999999999 | 0.1792 | AML | other | m | 2021-04-06T18:35:42.50 |
IV.MTRA.EHE. | ML:1.7 | 0.000259 | 0.38 | AML | other | m | 2021-04-06T18:35:43.56 |
IV.MTRA.EHN. | ML:1.7 | 0.000275 | 0.34 | AML | other | m | 2021-04-06T18:35:43.84 |
IV.MTRA.HNN. | ML:1.7 | 0.0002524459 | 0.2304 | AML | other | m | 2021-04-06T18:35:43.67 |
IV.CSP1.EHN. | ML:1.9 | 0.0003233944 | 0.1792 | AML | other | m | 2021-04-06T18:35:45.40 |
IV.CSP1.EHE. | ML:2.0 | 0.00040869855 | 0.2688 | AML | other | m | 2021-04-06T18:35:45.22 |