A magnitude ML 1.2 earthquake occured in region: 6 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8450, 13.0920 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 |
Preci | PG | 6 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 8 | 281 | 5962 |
Visso | MC | 10 | 1107 | 7069 |
Ussita | MC | 12 | 444 | 7513 |
Sellano | PG | 14 | 1079 | 8592 |
Cerreto di Spoleto | PG | 15 | 1075 | 9667 |
Cascia | PG | 15 | 3217 | 12884 |
Monte Cavallo | MC | 18 | 145 | 13029 |
Arquata del Tronto | AP | 19 | 1178 | 14207 |
Poggiodomo | PG | 19 | 117 | 14324 |
Montegallo | AP | 20 | 523 | 14847 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-05-22 18:14:38 |
42.8447 | 13.0918 | 11 | 2021-05-22 18:20:39 |
Sala Sismica INGV-Roma | 90382401 |
Field | Value |
---|---|
Time (UTC) | 2021-05-22 18:14:38 ± 0.07 |
Latitude | 42.8447 ± 0.0036 |
Longitude | 13.0918 ± 0.0061 |
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 | 90382401 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 521 |
Semi-minor axis of confidence ellipse (meter) | 425 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 63 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 520.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.43617 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 90382401 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-22 18:20:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PIEI.HHZ. | 2021-05-22T18:14:53.18 | 3.0 | positive | manual | P | -1.03 | 0 | |||
IV.CSP1.EHZ. | 2021-05-22T18:14:48.35 | 0.3 | undecidable | manual | S | 18 | 28.9488 | 50 | 0.04 | 75 |
IV.SMA1.EHZ. | 2021-05-22T18:14:48.53 | 0.3 | undecidable | manual | S | 140 | 30.9468 | 50 | -0.32 | 70 |
IV.MTRA.EHZ. | 2021-05-22T18:14:47.58 | 0.3 | undecidable | manual | S | 111 | 26.6511 | 50 | -0.13 | 74 |
IV.CESI.HHZ. | 2021-05-22T18:14:46.82 | 0.3 | undecidable | manual | S | 320 | 23.3544 | 50 | -0.02 | 76 |
IV.GAVE.EHZ. | 2021-05-22T18:14:46.36 | 0.3 | undecidable | manual | S | 224 | 23.3544 | 50 | -0.47 | 69 |
IV.TERO.HHZ. | 2021-05-22T18:14:46.88 | 0.1 | undecidable | manual | P | 120 | 48.4182 | 50 | -0.09 | 95 |
IV.RM33.EHZ. | 2021-05-22T18:14:45.39 | 0.1 | undecidable | manual | P | 165 | 38.5281 | 50 | -0.06 | 98 |
IV.MMO1.EHZ. | 2021-05-22T18:14:45.59 | 0.3 | undecidable | manual | S | 72 | 20.0688 | 118 | -0.28 | 72 |
IV.FDMO.HHZ. | 2021-05-22T18:14:45.43 | 0.3 | undecidable | manual | S | 359 | 21.2676 | 116 | -0.83 | 60 |
IV.SMA1.EHZ. | 2021-05-22T18:14:44.39 | 0.1 | undecidable | manual | P | 140 | 30.9468 | 50 | 0.12 | 98 |
IV.CSP1.EHZ. | 2021-05-22T18:14:44.06 | 0.1 | undecidable | manual | P | 18 | 28.9488 | 50 | 0.1 | 98 |
IV.MC2.EHZ. | 2021-05-22T18:14:43.46 | 0.3 | undecidable | manual | S | 47 | 10.7781 | 134 | 0.2 | 75 |
IV.CESI.HHZ. | 2021-05-22T18:14:43.25 | 0.1 | undecidable | manual | P | 320 | 23.3544 | 50 | 0.14 | 99 |
IV.MTRA.EHZ. | 2021-05-22T18:14:43.91 | 0.1 | undecidable | manual | P | 111 | 26.6511 | 50 | 0.29 | 95 |
IV.GAVE.EHZ. | 2021-05-22T18:14:43.34 | 0.1 | undecidable | manual | P | 224 | 23.3544 | 50 | 0.24 | 97 |
IV.LNSS.HHZ. | 2021-05-22T18:14:43.75 | 0.1 | undecidable | manual | P | 189 | 27.1506 | 50 | 0.06 | 100 |
IV.FDMO.HHZ. | 2021-05-22T18:14:42.88 | 0.1 | undecidable | manual | P | 359 | 21.2676 | 116 | 0.11 | 100 |
IV.MMO1.EHZ. | 2021-05-22T18:14:42.62 | 0.3 | negative | manual | P | 72 | 20.0688 | 118 | 0.06 | 76 |
IV.NRCA.HHZ. | 2021-05-22T18:14:41.52 | 0.3 | undecidable | manual | S | 124 | 2.1978 | 168 | -0.23 | 75 |
IV.MC2.EHZ. | 2021-05-22T18:14:41.48 | 0.6 | undecidable | manual | P | 47 | 10.7781 | 134 | 0.43 | 47 |
IV.NRCA.HHZ. | 2021-05-22T18:14:40.42 | 0.1 | undecidable | manual | P | 124 | 2.1978 | 168 | 0.25 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.7 | 0.0009270000000000001 | 0.08 | AML | other | m | 2021-05-22T18:14:41.79 |
IV.NRCA.HNN. | ML:1.7 | 0.0008449999999999999 | 0.08 | AML | other | m | 2021-05-22T18:14:41.80 |
IV.NRCA.HHE. | ML:1.7 | 0.0009165000000000001 | 0.18 | AML | other | m | 2021-05-22T18:14:41.86 |
IV.NRCA.HNE. | ML:1.7 | 0.0008595 | 0.18 | AML | other | m | 2021-05-22T18:14:41.86 |
IV.GAVE.EHN. | ML:1.1 | 0.00007555000000000001 | 0.42 | AML | other | m | 2021-05-22T18:14:47.21 |
IV.CESI.HHN. | ML:1.2 | 0.00011015 | 0.24 | AML | other | m | 2021-05-22T18:14:47.31 |
IV.CESI.HHE. | ML:1.0 | 0.0000708 | 0.3 | AML | other | m | 2021-05-22T18:14:47.31 |
IV.GAVE.EHE. | ML:1.2 | 0.0000973 | 0.28 | AML | other | m | 2021-05-22T18:14:47.34 |
IV.MTRA.EHN. | ML:1.1 | 0.00006654999999999999 | 1.32 | AML | other | m | 2021-05-22T18:14:48.75 |
IV.LNSS.HHN. | ML:1.0 | 0.00004910000000000001 | 0.72 | AML | other | m | 2021-05-22T18:14:48.56 |
IV.MTRA.EHE. | ML:1.1 | 0.0000665 | 0.84 | AML | other | m | 2021-05-22T18:14:49.45 |
IV.LNSS.HHE. | ML:1.0 | 0.0000538 | 0.56 | AML | other | m | 2021-05-22T18:14:49.51 |