A magnitude ML 1.3 earthquake occured in region: 4 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8170, 13.0580 at 10 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 |
Cascia | PG | 11 | 3217 | 8898 |
Cerreto di Spoleto | PG | 12 | 1075 | 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 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-02-20 05:52:54 |
42.817 | 13.058 | 10 | 2021-02-20 05:57:59 |
Sala Sismica INGV-Roma | 87315941 |
Field | Value |
---|---|
Time (UTC) | 2021-02-20 05:52:54 ± 0.06 |
Latitude | 42.8170 ± 0.0036 |
Longitude | 13.0580 ± 0.0049 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87315941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 380 |
Semi-minor axis of confidence ellipse (meter) | 260 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 299 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 380.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 52 |
Number of associated phases, regardless of their use for origin computation | 28 |
Number of defining phases | 28 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.04407 |
Epicentral distance of station farthest from the epicenter (degree) | 0.44516 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.3 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 87315941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-20 05:57:59 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-02-20T05:53:09.84 | 0.6 | undecidable | manual | S | 116 | 49.4172 | 50 | -0.21 | 47 |
IV.MOMA.HHZ. | 2021-02-20T05:53:07.81 | 0.6 | undecidable | manual | S | 268 | 39.7269 | 50 | 0.35 | 46 |
IV.ASSB.HHZ. | 2021-02-20T05:53:07.44 | 0.6 | undecidable | manual | S | 308 | 40.9257 | 50 | -0.35 | 46 |
IV.MF5.EHZ. | 2021-02-20T05:53:07.63 | 0.3 | undecidable | manual | S | 60 | 37.7289 | 50 | 0.7 | 62 |
IV.RM33.EHZ. | 2021-02-20T05:53:06.52 | 0.6 | undecidable | manual | S | 159 | 36.4413 | 50 | -0.07 | 49 |
IV.GUMA.HHZ. | 2021-02-20T05:53:06.38 | 0.6 | undecidable | manual | S | 39 | 35.3424 | 50 | 0.09 | 49 |
IV.SMA1.EHZ. | 2021-02-20T05:53:05.13 | 0.6 | undecidable | manual | S | 132 | 30.6471 | 50 | 0.1 | 49 |
IV.CSP1.EHZ. | 2021-02-20T05:53:05.28 | 0.6 | undecidable | manual | S | 21 | 32.745 | 50 | -0.31 | 47 |
IV.CESI.HHZ. | 2021-02-20T05:53:03.09 | 0.6 | undecidable | manual | S | 329 | 24.2535 | 112 | -0.2 | 49 |
IV.TERO.HHZ. | 2021-02-20T05:53:03.03 | 0.1 | undecidable | manual | P | 116 | 49.4172 | 50 | -0.31 | 91 |
IV.LNSS.HHZ. | 2021-02-20T05:53:02.90 | 0.6 | undecidable | manual | S | 183 | 23.754 | 113 | -0.23 | 48 |
IV.MOMA.HHZ. | 2021-02-20T05:53:02.23 | 0.1 | undecidable | manual | P | 268 | 39.7269 | 50 | 0.39 | 91 |
IV.MMO1.EHZ. | 2021-02-20T05:53:02.65 | 0.6 | undecidable | manual | S | 67 | 23.6541 | 113 | -0.45 | 46 |
IV.MF5.EHZ. | 2021-02-20T05:53:01.95 | 1.0 | positive | manual | P | 60 | 37.7289 | 50 | 0.41 | 23 |
IV.RM33.EHZ. | 2021-02-20T05:53:01.22 | 0.1 | undecidable | manual | P | 159 | 36.4413 | 50 | -0.12 | 97 |
IV.GAVE.EHZ. | 2021-02-20T05:53:01.87 | 0.6 | undecidable | manual | S | 224 | 19.2696 | 118 | 0.18 | 49 |
IV.GUMA.HHZ. | 2021-02-20T05:53:01.26 | 0.1 | undecidable | manual | P | 39 | 35.3424 | 50 | 0.09 | 98 |
IV.ASSB.HHZ. | 2021-02-20T05:53:01.69 | 0.1 | undecidable | manual | P | 308 | 40.9257 | 50 | -0.34 | 92 |
IV.CSP1.EHZ. | 2021-02-20T05:53:00.62 | 0.6 | undecidable | manual | P | 21 | 32.745 | 50 | -0.14 | 49 |
IV.MC2.EHZ. | 2021-02-20T05:53:00.66 | 0.6 | undecidable | manual | S | 45 | 14.9739 | 124 | 0.25 | 49 |
IV.SMA1.EHZ. | 2021-02-20T05:53:00.40 | 0.6 | positive | manual | P | 132 | 30.6471 | 50 | -0.04 | 50 |
IV.MMO1.EHZ. | 2021-02-20T05:52:59.21 | 0.3 | undecidable | manual | P | 67 | 23.6541 | 113 | -0.11 | 75 |
IV.CESI.HHZ. | 2021-02-20T05:52:59.26 | 0.1 | undecidable | manual | P | 329 | 24.2535 | 112 | -0.17 | 98 |
IV.LNSS.HHZ. | 2021-02-20T05:52:59.26 | 0.1 | undecidable | manual | P | 183 | 23.754 | 113 | -0.08 | 100 |
IV.NRCA.HNZ. | 2021-02-20T05:52:58.06 | 0.6 | undecidable | manual | S | 68 | 4.8951 | 154 | 0.01 | 52 |
IV.MC2.EHZ. | 2021-02-20T05:52:58.05 | 0.6 | positive | manual | P | 45 | 14.9739 | 124 | 0.28 | 49 |
IV.GAVE.EHZ. | 2021-02-20T05:52:58.69 | 0.1 | positive | manual | P | 224 | 19.2696 | 118 | 0.18 | 99 |
IV.NRCA.HNZ. | 2021-02-20T05:52:56.68 | 0.3 | negative | manual | P | 68 | 4.8951 | 154 | 0.27 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.7 | 0.0009274999999999999 | 0.18 | AML | other | m | 2021-02-20T05:52:58.25 |
IV.NRCA.HNE. | ML:1.7 | 0.00088 | 0.18 | AML | other | m | 2021-02-20T05:52:58.16 |
IV.NRCA.HHN. | ML:1.6 | 0.000628 | 0.08 | AML | other | m | 2021-02-20T05:52:58.16 |
IV.NRCA.HNN. | ML:1.5 | 0.0005380000000000001 | 0.1 | AML | other | m | 2021-02-20T05:52:58.21 |
IV.GAVE.EHE. | ML:1.6 | 0.0002805 | 0.64 | AML | other | m | 2021-02-20T05:53:02.33 |
IV.GAVE.EHN. | ML:1.4 | 0.0002065 | 0.18 | AML | other | m | 2021-02-20T05:53:02.12 |
IV.CESI.HHN. | ML:1.2 | 0.0000994 | 0.18 | AML | other | m | 2021-02-20T05:53:03.26 |
IV.LNSS.HHE. | ML:1.4 | 0.00017549999999999998 | 0.12 | AML | other | m | 2021-02-20T05:53:03.42 |
IV.LNSS.HHN. | ML:1.4 | 0.00013800000000000002 | 0.4 | AML | other | m | 2021-02-20T05:53:03.37 |
IV.CESI.HHE. | ML:0.9 | 0.000049250000000000004 | 0.3 | AML | other | m | 2021-02-20T05:53:03.77 |
IV.CSP1.EHN. | ML:1.3 | 0.00009485 | 0.58 | AML | other | m | 2021-02-20T05:53:05.51 |
IV.GUMA.HHE. | ML:1.3 | 0.00007980000000000002 | 1.5 | AML | other | m | 2021-02-20T05:53:06.80 |
IV.CSP1.EHE. | ML:1.3 | 0.00009460000000000001 | 1.24 | AML | other | m | 2021-02-20T05:53:07.67 |
IV.SMA1.EHE. | ML:1.1 | 0.00005605 | 0.76 | AML | other | m | 2021-02-20T05:53:08.63 |
IV.MOMA.HHN. | ML:1.1 | 0.000038100000000000005 | 0.92 | AML | other | m | 2021-02-20T05:53:08.50 |
IV.MOMA.HHE. | ML:1.2 | 0.000054850000000000005 | 1.3 | AML | other | m | 2021-02-20T05:53:09.30 |
IV.SMA1.EHN. | ML:0.9 | 0.00003625 | 0.52 | AML | other | m | 2021-02-20T05:53:09.28 |
IV.TERO.HHN. | ML:0.9 | 0.000021249999999999998 | 0.76 | AML | other | m | 2021-02-20T05:53:11.43 |
IV.TERO.HHE. | ML:0.8 | 0.00001266 | 0.3 | AML | other | m | 2021-02-20T05:53:12.19 |
IV.GUMA.HHN. | ML:1.1 | 0.000054 | 0.46 | AML | other | m | 2021-02-20T05:53:16.42 |