A magnitude ML 0.4 earthquake occured in region: 4 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7640, 13.2460 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 4 | 1178 | 1178 |
Accumoli | RI | 8 | 667 | 1845 |
Montegallo | AP | 11 | 523 | 2368 |
Norcia | PG | 13 | 4957 | 7325 |
Acquasanta Terme | AP | 13 | 2916 | 10241 |
Amatrice | RI | 15 | 2657 | 12898 |
Castelsantangelo sul Nera | MC | 16 | 281 | 13179 |
Montemonaco | AP | 17 | 604 | 13783 |
Cittareale | RI | 18 | 482 | 14265 |
Cascia | PG | 20 | 3217 | 17482 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.4 | 2020-09-01 23:26:55 |
42.7638 | 13.2457 | 11 | 2020-09-01 23:38:27 |
Sala Sismica INGV-Roma | 82544241 |
Field | Value |
---|---|
Time (UTC) | 2020-09-01 23:26:55 ± 0.06 |
Latitude | 42.7638 ± 0.0027 |
Longitude | 13.2457 ± 0.0049 |
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 | 82544241 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 447 |
Semi-minor axis of confidence ellipse (meter) | 96 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 246 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 450.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 138 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.11062 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32915 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 82544241 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-01 23:38:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2020-09-01T23:27:08.23 | 0.3 | undecidable | manual | S | 355 | 36.5412 | 50 | 0.26 | 68 |
IV.TERO.HHZ. | 2020-09-01T23:27:06.80 | 0.3 | undecidable | manual | S | 118 | 33.1446 | 50 | -0.26 | 69 |
IV.SMA1.EHZ. | 2020-09-01T23:27:02.24 | 0.1 | undecidable | manual | S | 154 | 16.4724 | 123 | -0.17 | 96 |
IV.MC2.EHZ. | 2020-09-01T23:27:02.72 | 0.3 | undecidable | manual | S | 344 | 16.9719 | 122 | 0.15 | 72 |
IV.CSP1.EHZ. | 2020-09-01T23:27:02.64 | 0.3 | undecidable | manual | P | 355 | 36.5412 | 50 | -0.11 | 71 |
IV.MMO1.EHZ. | 2020-09-01T23:27:02.36 | 0.1 | undecidable | manual | S | 24 | 16.4724 | 123 | -0.03 | 99 |
IV.T1299.HNZ. | 2020-09-01T23:27:02.08 | 0.1 | undecidable | manual | S | 168 | 14.6742 | 126 | 0.19 | 96 |
IV.TERO.HHZ. | 2020-09-01T23:27:02.18 | 0.1 | undecidable | manual | P | 118 | 33.1446 | 50 | -0.04 | 96 |
IV.NRCA.HNZ. | 2020-09-01T23:27:01.17 | 0.1 | undecidable | manual | S | 306 | 13.1757 | 129 | -0.31 | 94 |
IV.MTRA.EHZ. | 2020-09-01T23:27:01.13 | 0.3 | undecidable | manual | S | 94 | 12.2766 | 130 | -0.11 | 74 |
IV.SMA1.EHZ. | 2020-09-01T23:26:59.57 | 0.1 | undecidable | manual | P | 154 | 16.4724 | 123 | 0.03 | 99 |
IV.MC2.EHZ. | 2020-09-01T23:26:59.60 | 0.6 | undecidable | manual | P | 344 | 16.9719 | 122 | -0.03 | 50 |
IV.MMO1.EHZ. | 2020-09-01T23:26:59.59 | 0.1 | undecidable | manual | P | 24 | 16.4724 | 123 | 0.06 | 98 |
IV.T1299.HNZ. | 2020-09-01T23:26:59.46 | 0.1 | undecidable | manual | P | 168 | 14.6742 | 126 | 0.22 | 96 |
IV.MTRA.EHZ. | 2020-09-01T23:26:58.98 | 0.1 | undecidable | manual | P | 94 | 12.2766 | 130 | 0.11 | 98 |
IV.NRCA.HNZ. | 2020-09-01T23:26:58.99 | 0.1 | undecidable | manual | P | 306 | 13.1757 | 129 | -0.01 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:0.7 | 0.00004555 | 0.94 | AML | other | m | 2020-09-01T23:27:02.56 |
IV.SMA1.EHN. | ML:0.6 | 0.0000354 | 0.7 | AML | other | m | 2020-09-01T23:27:02.57 |
IV.MTRA.EHE. | ML:0.3 | 0.000021365835 | 0.1792 | AML | other | m | 2020-09-01T23:27:02.14 |
IV.MTRA.EHN. | ML:0.1 | 0.00001526063 | 0.2304 | AML | other | m | 2020-09-01T23:27:01.72 |