A magnitude ML 1.2 earthquake occured in region: 6 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.8060, 13.2440 at 9 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 6 | 1178 | 1178 |
Montegallo | AP | 8 | 523 | 1701 |
Accumoli | RI | 12 | 667 | 2368 |
Norcia | PG | 12 | 4957 | 7325 |
Castelsantangelo sul Nera | MC | 12 | 281 | 7606 |
Montemonaco | AP | 13 | 604 | 8210 |
Acquasanta Terme | AP | 14 | 2916 | 11126 |
Montefortino | FM | 17 | 1178 | 12304 |
Ussita | MC | 18 | 444 | 12748 |
Preci | PG | 19 | 724 | 13472 |
Visso | MC | 19 | 1107 | 14579 |
Amatrice | RI | 20 | 2657 | 17236 |
Roccafluvione | AP | 20 | 2010 | 19246 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-09-01 03:16:36 |
42.8055 | 13.2443 | 9 | 2021-09-01 03:47:53 |
Sala Sismica INGV-Roma | 94894151 |
Field | Value |
---|---|
Time (UTC) | 2021-09-01 03:16:36 ± 0.1 |
Latitude | 42.8055 ± 0.0036 |
Longitude | 13.2443 ± 0.0049 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 94894151 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 408 |
Semi-minor axis of confidence ellipse (meter) | 266 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 267 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 410.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 81 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 18 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.29678 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 94894151 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-01 03:47:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RM33.EHN. | 2021-09-01T03:16:48.10 | 0.3 | undecidable | manual | S | 184 | 32.9448 | 50 | 0.04 | 72 |
IV.GAVE.EHN. | 2021-09-01T03:16:48.02 | 0.6 | undecidable | manual | S | 246 | 31.1466 | 50 | 0.45 | 45 |
IV.LNSS.HNE. | 2021-09-01T03:16:46.62 | 0.3 | undecidable | manual | S | 217 | 27.9498 | 108 | 0.02 | 73 |
IV.T1299.HNZ. | 2021-09-01T03:16:44.30 | 0.3 | undecidable | manual | S | 171 | 19.2696 | 116 | 0.51 | 66 |
IV.SMA1.EHZ. | 2021-09-01T03:16:44.19 | 0.6 | undecidable | manual | S | 159 | 20.7681 | 114 | -0.08 | 49 |
IV.MML1.EHZ. | 2021-09-01T03:16:44.39 | 3.0 | undecidable | manual | P | -0.06 | 0 | |||
IV.RM33.EHN. | 2021-09-01T03:16:43.16 | 0.1 | undecidable | manual | P | 184 | 32.9448 | 50 | 0.04 | 97 |
IV.GUMA.HHZ. | 2021-09-01T03:16:42.90 | 3.0 | undecidable | manual | P | 0.09 | 0 | |||
IV.GAVE.EHN. | 2021-09-01T03:16:42.89 | 0.3 | undecidable | manual | P | 246 | 31.1466 | 50 | 0.05 | 73 |
IV.CSP1.EHZ. | 2021-09-01T03:16:42.86 | 3.0 | positive | manual | P | -0.28 | 0 | |||
IV.MTRA.EHZ. | 2021-09-01T03:16:42.02 | 0.3 | undecidable | manual | S | 114 | 13.4754 | 124 | -0.04 | 75 |
IV.LNSS.HNE. | 2021-09-01T03:16:42.07 | 0.1 | undecidable | manual | P | 217 | 27.9498 | 108 | -0.21 | 94 |
IV.MF5.EHZ. | 2021-09-01T03:16:42.63 | 3.0 | undecidable | manual | P | 0.24 | 0 | |||
IV.MC2.EHZ. | 2021-09-01T03:16:42.26 | 0.3 | undecidable | manual | S | 339 | 12.5763 | 126 | 0.46 | 68 |
IV.NRCA.HHZ. | 2021-09-01T03:16:41.07 | 0.1 | undecidable | manual | S | 286 | 11.0778 | 130 | -0.31 | 96 |
IV.MMO1.EHZ. | 2021-09-01T03:16:41.71 | 0.3 | undecidable | manual | S | 33 | 12.3765 | 127 | -0.03 | 75 |
IV.T1299.HNZ. | 2021-09-01T03:16:40.75 | 0.1 | undecidable | manual | P | 171 | 19.2696 | 116 | 0.09 | 98 |
IV.SMA1.EHZ. | 2021-09-01T03:16:40.55 | 0.1 | undecidable | manual | P | 159 | 20.7681 | 114 | -0.39 | 92 |
IV.MTRA.EHZ. | 2021-09-01T03:16:39.72 | 0.3 | undecidable | manual | P | 114 | 13.4754 | 124 | 0.06 | 75 |
IV.MC2.EHZ. | 2021-09-01T03:16:39.59 | 0.3 | undecidable | manual | P | 339 | 12.5763 | 126 | 0.08 | 75 |
IV.MMO1.EHZ. | 2021-09-01T03:16:39.40 | 0.1 | undecidable | manual | P | 33 | 12.3765 | 127 | -0.08 | 99 |
IV.NRCA.HHZ. | 2021-09-01T03:16:39.21 | 0.1 | undecidable | manual | P | 286 | 11.0778 | 130 | -0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.2 | 0.0002145 | 0.14 | AML | other | m | 2021-09-01T03:16:41.21 |
IV.NRCA.HHN. | ML:1.2 | 0.0002175 | 0.14 | AML | other | m | 2021-09-01T03:16:41.73 |
IV.MTRA.EHE. | ML:1.3 | 0.0002095 | 0.16 | AML | other | m | 2021-09-01T03:16:42.78 |
IV.MTRA.EHN. | ML:1.4 | 0.00023961949999999998 | 0.3792 | AML | other | m | 2021-09-01T03:16:42.64 |
IV.SMA1.EHN. | ML:0.3 | 0.000017041085 | 0.9408 | AML | other | m | 2021-09-01T03:16:44.81 |
IV.SMA1.EHE. | ML:0.4 | 0.0000181702955 | 0.3008 | AML | other | m | 2021-09-01T03:16:44.51 |
IV.NRCA.HNE. | ML:1.2 | 0.0002197189 | 0.2704 | AML | other | m | 2021-09-01T03:16:41.42 |
IV.NRCA.HNN. | ML:1.2 | 0.0002124555 | 0.1296 | AML | other | m | 2021-09-01T03:16:41.73 |
IV.MTRA.HNE. | ML:1.3 | 0.00021026865 | 0.16 | AML | other | m | 2021-09-01T03:16:42.70 |
IV.MTRA.HNN. | ML:1.4 | 0.00025161535 | 0.3792 | AML | other | m | 2021-09-01T03:16:42.63 |