A magnitude ML 0.9 earthquake occured in region: 7 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7770, 13.1790 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 | 7 | 4957 | 4957 |
Arquata del Tronto | AP | 10 | 1178 | 6135 |
Accumoli | RI | 11 | 667 | 6802 |
Castelsantangelo sul Nera | MC | 13 | 281 | 7083 |
Montegallo | AP | 15 | 523 | 7606 |
Cascia | PG | 15 | 3217 | 10823 |
Preci | PG | 16 | 724 | 11547 |
Cittareale | RI | 18 | 482 | 12029 |
Montemonaco | AP | 18 | 604 | 12633 |
Amatrice | RI | 19 | 2657 | 15290 |
Visso | MC | 19 | 1107 | 16397 |
Ussita | MC | 19 | 444 | 16841 |
Acquasanta Terme | AP | 19 | 2916 | 19757 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-08-25 22:07:13 |
42.7772 | 13.1787 | 11 | 2021-08-25 22:14:06 |
Sala Sismica INGV-Roma | 94636691 |
Field | Value |
---|---|
Time (UTC) | 2021-08-25 22:07:13 ± 0.03 |
Latitude | 42.7772 ± 0.0018 |
Longitude | 13.1787 ± 0.0037 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 94636691 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 225 |
Semi-minor axis of confidence ellipse (meter) | 148 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 74 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 220.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 72 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 22 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36872 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 94636691 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-25 22:14:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GIUL.HHZ. | 2021-08-25T22:07:50.42 | 3.0 | undecidable | manual | S | -0.7 | 0 | |||
IV.CRTC.HHZ. | 2021-08-25T22:07:47.14 | 3.0 | undecidable | manual | S | 0.36 | 0 | |||
IV.RMP.HHZ. | 2021-08-25T22:07:46.95 | 3.0 | undecidable | manual | S | 0.54 | 0 | |||
IV.MML1.EHZ. | 2021-08-25T22:07:26.67 | 0.3 | undecidable | manual | S | 336 | 40.9257 | 50 | 0.04 | 71 |
IV.CSP1.EHZ. | 2021-08-25T22:07:24.99 | 0.3 | undecidable | manual | S | 3 | 34.9428 | 50 | -0.06 | 73 |
IV.RM33.EHZ. | 2021-08-25T22:07:23.82 | 0.3 | undecidable | manual | S | 174 | 29.8479 | 50 | 0.13 | 72 |
IV.FDMO.HHZ. | 2021-08-25T22:07:23.27 | 0.3 | undecidable | manual | S | 346 | 29.748 | 50 | -0.37 | 69 |
IV.GAVE.EHZ. | 2021-08-25T22:07:22.19 | 0.3 | undecidable | manual | S | 248 | 25.0527 | 50 | -0.2 | 71 |
IV.SMA1.EHZ. | 2021-08-25T22:07:21.18 | 0.3 | undecidable | manual | S | 142 | 20.6682 | 50 | -0.05 | 74 |
IV.LNSS.HHZ. | 2021-08-25T22:07:21.76 | 0.3 | undecidable | manual | S | 210 | 22.3554 | 50 | 0.07 | 74 |
IV.MML1.EHZ. | 2021-08-25T22:07:20.95 | 0.1 | undecidable | manual | P | 336 | 40.9257 | 50 | -0.02 | 96 |
IV.MMO1.EHZ. | 2021-08-25T22:07:20.49 | 0.3 | undecidable | manual | S | 42 | 18.1707 | 50 | -0.06 | 75 |
IV.MTRA.EHZ. | 2021-08-25T22:07:20.33 | 0.3 | undecidable | manual | S | 97 | 17.871 | 50 | -0.16 | 74 |
IV.TERO.HHZ. | 2021-08-25T22:07:20.68 | 3.0 | undecidable | manual | Pg | 0.26 | 0 | |||
IV.FDMO.HHZ. | 2021-08-25T22:07:19.35 | 0.1 | undecidable | manual | P | 346 | 29.748 | 50 | 0.11 | 96 |
IV.MC2.EHZ. | 2021-08-25T22:07:19.84 | 0.3 | undecidable | manual | S | 3 | 14.9739 | 126 | 0.19 | 73 |
IV.RM33.EHZ. | 2021-08-25T22:07:19.34 | 0.1 | undecidable | manual | P | 174 | 29.8479 | 50 | 0.08 | 97 |
IV.CSP1.EHZ. | 2021-08-25T22:07:19.97 | 0.1 | undecidable | manual | P | 3 | 34.9428 | 50 | -0.08 | 96 |
IV.GAVE.EHZ. | 2021-08-25T22:07:18.43 | 0.1 | undecidable | manual | P | 248 | 25.0527 | 50 | -0.09 | 97 |
IV.LNSS.HHZ. | 2021-08-25T22:07:18.13 | 0.1 | undecidable | manual | P | 210 | 22.3554 | 50 | 0.02 | 100 |
IV.NRCA.HHZ. | 2021-08-25T22:07:17.81 | 0.3 | undecidable | manual | S | 320 | 8.1807 | 143 | -0.15 | 73 |
IV.MTRA.EHZ. | 2021-08-25T22:07:17.43 | 0.1 | undecidable | manual | P | 97 | 17.871 | 50 | 0.01 | 100 |
IV.SMA1.EHZ. | 2021-08-25T22:07:17.77 | 0.1 | undecidable | manual | P | 142 | 20.6682 | 50 | -0.08 | 99 |
IV.MC2.EHZ. | 2021-08-25T22:07:17.12 | 0.1 | undecidable | manual | P | 3 | 14.9739 | 126 | 0.18 | 97 |
IV.MMO1.EHZ. | 2021-08-25T22:07:17.47 | 0.1 | undecidable | manual | P | 42 | 18.1707 | 50 | 0.01 | 99 |
IV.NRCA.HHZ. | 2021-08-25T22:07:16.10 | 0.1 | undecidable | manual | P | 320 | 8.1807 | 143 | 0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.2 | 0.000201 | 0.06 | AML | other | m | 2021-08-25T22:07:18.45 |
IV.NRCA.HHN. | ML:1.3 | 0.00028849999999999997 | 0.14 | AML | other | m | 2021-08-25T22:07:19.18 |
IV.MTRA.EHN. | ML:0.8 | 0.00004825 | 0.74 | AML | other | m | 2021-08-25T22:07:21.95 |
IV.LNSS.HHE. | ML:0.8 | 0.0000446 | 1.6 | AML | other | m | 2021-08-25T22:07:21.88 |
IV.LNSS.HHN. | ML:0.8 | 0.00004505 | 1.82 | AML | other | m | 2021-08-25T22:07:21.01 |
IV.MTRA.EHE. | ML:0.8 | 0.0000492 | 0.8 | AML | other | m | 2021-08-25T22:07:22.18 |
IV.GAVE.EHE. | ML:1.0 | 0.00005795 | 0.48 | AML | other | m | 2021-08-25T22:07:22.76 |
IV.GAVE.EHN. | ML:1.0 | 0.000055650000000000004 | 0.12 | AML | other | m | 2021-08-25T22:07:22.81 |
IV.FDMO.HHN. | ML:0.6 | 0.0000185 | 0.64 | AML | other | m | 2021-08-25T22:07:25.63 |
IV.FDMO.HHE. | ML:0.5 | 0.0000125 | 0.74 | AML | other | m | 2021-08-25T22:07:27.45 |