A magnitude ML 0.4 earthquake occured in region: 4 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8190, 13.0580 at 7 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 | 7 | 724 | 5681 |
Cerreto di Spoleto | PG | 11 | 1075 | 6756 |
Cascia | PG | 12 | 3217 | 9973 |
Castelsantangelo sul Nera | MC | 12 | 281 | 10254 |
Visso | MC | 13 | 1107 | 11361 |
Sellano | PG | 13 | 1079 | 12440 |
Poggiodomo | PG | 15 | 117 | 12557 |
Ussita | MC | 16 | 444 | 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 0.4 | 2021-05-13 00:42:15 |
42.8187 | 13.0575 | 7 | 2021-05-13 00:48:24 |
Sala Sismica INGV-Roma | 90039321 |
Field | Value |
---|---|
Time (UTC) | 2021-05-13 00:42:15 ± 0.14 |
Latitude | 42.8187 ± 0.0036 |
Longitude | 13.0575 ± 0.0061 |
Depth (km) | 7 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 90039321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 469 |
Semi-minor axis of confidence ellipse (meter) | 152 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 287 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 470.0 |
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 | 19 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.04407 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35793 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.3 |
Num. used stations | 7 |
Type of magnitude | ML |
Reference to an origin | 90039321 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-13 00:48:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SMA1.EHZ. | 2021-05-13T00:42:26.76 | 0.6 | undecidable | manual | S | 133 | 30.8469 | 103 | -0.11 | 50 |
IV.FDMO.HHZ. | 2021-05-13T00:42:24.33 | 0.6 | undecidable | manual | S | 6 | 24.2535 | 107 | -0.35 | 48 |
IV.LNSS.HHZ. | 2021-05-13T00:42:24.23 | 0.6 | undecidable | manual | S | 183 | 23.9538 | 107 | -0.35 | 49 |
IV.CESI.HHZ. | 2021-05-13T00:42:24.64 | 0.6 | undecidable | manual | S | 329 | 24.0537 | 107 | 0.02 | 52 |
IV.MOMA.HHE. | 2021-05-13T00:42:24.22 | 0.1 | undecidable | manual | P | 268 | 39.7269 | 50 | 0.32 | 96 |
IV.GAVE.EHZ. | 2021-05-13T00:42:23.09 | 0.6 | undecidable | manual | S | 224 | 19.3695 | 111 | 0.03 | 51 |
IV.MMO1.EHZ. | 2021-05-13T00:42:23.96 | 0.6 | undecidable | manual | S | 68 | 23.6541 | 107 | -0.52 | 46 |
IV.SMA1.EHZ. | 2021-05-13T00:42:22.23 | 1.0 | undecidable | manual | P | 133 | 30.8469 | 103 | 0.01 | 26 |
IV.MTRA.HNZ. | 2021-05-13T00:42:22.24 | 0.1 | undecidable | manual | P | 104 | 28.4493 | 104 | 0.47 | 95 |
IV.T1299.EHZ. | 2021-05-13T00:42:21.78 | 0.1 | undecidable | manual | P | 138 | 27.4503 | 105 | 0.2 | 100 |
IV.MC2.EHZ. | 2021-05-13T00:42:21.97 | 0.6 | undecidable | manual | S | 46 | 14.874 | 116 | 0.35 | 49 |
IV.GAVE.EHZ. | 2021-05-13T00:42:20.02 | 1.0 | undecidable | manual | P | 224 | 19.3695 | 111 | 0 | 26 |
IV.MMO1.EHZ. | 2021-05-13T00:42:20.42 | 0.6 | undecidable | manual | P | 68 | 23.6541 | 107 | -0.42 | 47 |
IV.FDMO.HHZ. | 2021-05-13T00:42:20.68 | 1.0 | positive | manual | P | 6 | 24.2535 | 107 | -0.28 | 24 |
IV.LNSS.HHZ. | 2021-05-13T00:42:20.61 | 0.1 | undecidable | manual | P | 183 | 23.9538 | 107 | -0.3 | 98 |
IV.CESI.HHZ. | 2021-05-13T00:42:20.85 | 0.6 | undecidable | manual | P | 329 | 24.0537 | 107 | -0.08 | 51 |
IV.NRCA.HHZ. | 2021-05-13T00:42:19.07 | 0.6 | undecidable | manual | S | 70 | 4.8951 | 146 | 0.13 | 51 |
IV.MC2.EHZ. | 2021-05-13T00:42:19.29 | 0.6 | positive | manual | P | 46 | 14.874 | 116 | 0.09 | 52 |
IV.NRCA.HHZ. | 2021-05-13T00:42:17.64 | 0.6 | undecidable | manual | P | 70 | 4.8951 | 146 | -0.01 | 53 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.GAVE.EHE. | ML:0.7 | 0.000045350000000000005 | 0.54 | AML | other | m | 2021-05-13T00:42:24.67 |
IV.GAVE.EHN. | ML:0.4 | 0.0000215161812 | 1.58 | AML | other | m | 2021-05-13T00:42:25.63 |
IV.NRCA.HNE. | ML:0.0 | 0.0001272302 | 0.07 | AML | other | m | 2021-05-13T00:42:19.13 |
IV.NRCA.HNN. | ML:0.0 | 0.0002257212 | 0.07 | AML | other | m | 2021-05-13T00:42:19.11 |
IV.GAVE.HNE. | ML:0.9 | 0.000063637885 | 0.1 | AML | other | m | 2021-05-13T00:42:23.79 |
IV.FDMO.HHE. | ML:0.2 | 0.000010906538 | 0.26 | AML | other | m | 2021-05-13T00:42:24.49 |
IV.FDMO.HHN. | ML:0.2 | 0.000011717436499999999 | 0.2 | AML | other | m | 2021-05-13T00:42:24.46 |
IV.CESI.HHE. | ML:0.2 | 0.000012457135 | 0.8 | AML | other | m | 2021-05-13T00:42:24.81 |
IV.CESI.HHN. | ML:0.4 | 0.000014941915 | 0.3 | AML | other | m | 2021-05-13T00:42:24.86 |