A magnitude ML 1.6 earthquake occured in region: 5 km W Acquasparta (TR), on
and geographic coordinates (lat, lon) 42.7060, 12.4940 at 8 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 |
---|---|---|---|---|
Acquasparta | TR | 5 | 4778 | 4778 |
Montecastrilli | TR | 6 | 5022 | 9800 |
Avigliano Umbro | TR | 8 | 2558 | 12358 |
Massa Martana | PG | 8 | 3770 | 16128 |
San Gemini | TR | 11 | 5018 | 21146 |
Todi | PG | 11 | 16851 | 37997 |
Giano dell'Umbria | PG | 16 | 3846 | 41843 |
Montecchio | TR | 17 | 1676 | 43519 |
Amelia | TR | 18 | 11897 | 55416 |
Guardea | TR | 18 | 1836 | 57252 |
Monte Castello di Vibio | PG | 19 | 1567 | 58819 |
Castel Ritaldi | PG | 20 | 3278 | 62097 |
Lugnano in Teverina | TR | 20 | 1494 | 63591 |
Fratta Todina | PG | 20 | 1839 | 65430 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.6 | 2023-07-18 08:49:16 |
42.7055 | 12.4942 | 8 | 2023-07-18 08:55:46 |
Sala Sismica INGV-Roma | 119363771 |
Field | Value |
---|---|
Time (UTC) | 2023-07-18 08:49:16 ± 0.1 |
Latitude | 42.7055 ± 0.0054 |
Longitude | 12.4942 ± 0.0073 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 119363771 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 658 |
Semi-minor axis of confidence ellipse (meter) | 352 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 220 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 660.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 144 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 19 |
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) | 0.64751 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 119363771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-07-18 08:55:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RIBO.EHZ.01 | 2023-07-18T08:49:39.86 | 3.0 | negative | manual | P | 1.78 | 0 | |||
IV.NRCA.HHZ. | 2023-07-18T08:49:34.02 | 0.6 | undecidable | manual | S | 74 | 52.503 | 50 | 0.21 | 48 |
IV.LNSS.HHN. | 2023-07-18T08:49:32.66 | 0.6 | undecidable | manual | S | 104 | 46.0206 | 50 | 0.58 | 44 |
IV.SSFR.HHZ. | 2023-07-18T08:49:31.67 | 3.0 | positive | manual | P | 0.07 | 0 | |||
IV.MGAB.HHZ. | 2023-07-18T08:49:29.99 | 0.3 | undecidable | manual | S | 307 | 38.628 | 50 | -0.14 | 74 |
IV.CSP1.EHZ. | 2023-07-18T08:49:29.59 | 0.6 | positive | manual | P | 53 | 71.8725 | 50 | 0.07 | 47 |
IV.ASSB.HHZ. | 2023-07-18T08:49:29.98 | 0.6 | undecidable | manual | S | 20 | 39.7269 | 50 | -0.43 | 46 |
IV.SMA1.EHZ. | 2023-07-18T08:49:29.77 | 3.0 | undecidable | manual | P | 0.24 | 0 | |||
IV.RM33.EHZ. | 2023-07-18T08:49:28.39 | 1.0 | negative | manual | P | 110 | 62.6928 | 50 | 0.29 | 23 |
IV.GAVE.HNE. | 2023-07-18T08:49:28.24 | 0.6 | undecidable | manual | S | 92 | 32.6451 | 103 | 0.05 | 51 |
IV.NRCA.HHZ. | 2023-07-18T08:49:26.36 | 0.6 | negative | manual | P | 74 | 52.503 | 50 | -0.16 | 48 |
IV.SACS.HHZ. | 2023-07-18T08:49:26.37 | 0.6 | positive | manual | P | 289 | 50.2164 | 50 | 0.2 | 48 |
IV.ARRO.EHZ. | 2023-07-18T08:49:25.48 | 0.3 | undecidable | manual | S | 122 | 26.2515 | 106 | -0.55 | 69 |
IV.LNSS.HHN. | 2023-07-18T08:49:25.28 | 0.6 | undecidable | manual | P | 104 | 46.0206 | 50 | -0.25 | 48 |
IV.ASSB.HHZ. | 2023-07-18T08:49:24.34 | 0.3 | undecidable | manual | P | 20 | 39.7269 | 50 | -0.22 | 73 |
IV.MGAB.HHZ. | 2023-07-18T08:49:24.40 | 0.3 | negative | manual | P | 307 | 38.628 | 50 | 0.01 | 76 |
IV.GAVE.HNE. | 2023-07-18T08:49:23.38 | 0.3 | undecidable | manual | P | 92 | 32.6451 | 103 | 0.1 | 76 |
IV.ARRO.EHZ. | 2023-07-18T08:49:22.18 | 0.6 | undecidable | manual | P | 122 | 26.2515 | 106 | 0.15 | 50 |
IV.CESX.HHZ. | 2023-07-18T08:49:21.68 | 0.3 | undecidable | manual | S | 145 | 13.1757 | 120 | -0.14 | 77 |
IT.GNU.HGE. | 2023-07-18T08:49:21.53 | 0.6 | undecidable | manual | S | 30 | 12.5763 | 121 | -0.11 | 52 |
IT.GNU.HGE. | 2023-07-18T08:49:19.80 | 0.1 | undecidable | manual | P | 30 | 12.5763 | 121 | 0.3 | 100 |
IV.CESX.HHZ. | 2023-07-18T08:49:19.94 | 0.6 | undecidable | manual | P | 145 | 13.1757 | 120 | 0.34 | 50 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHE. | ML:1.7 | 0.0006594999999999999 | 1.72 | AML | other | m | 2023-07-18T08:49:23.86 |
IV.CESX.HHN. | ML:1.7 | 0.0006540000000000001 | 0.36 | AML | other | m | 2023-07-18T08:49:24.34 |
IV.ARRO.EHE. | ML:1.6 | 0.00020400000000000003 | 0.2 | AML | other | m | 2023-07-18T08:49:27.71 |
IV.ARRO.EHN. | ML:1.4 | 0.00013900000000000002 | 0.2 | AML | other | m | 2023-07-18T08:49:29.55 |
IV.ASSB.HHN. | ML:1.4 | 0.00008055 | 0.3 | AML | other | m | 2023-07-18T08:49:30.26 |
IV.MGAB.HHN. | ML:1.6 | 0.0001555 | 0.82 | AML | other | m | 2023-07-18T08:49:30.58 |
IV.MGAB.HHE. | ML:1.7 | 0.0001875 | 0.48 | AML | other | m | 2023-07-18T08:49:31.67 |
IV.ASSB.HHE. | ML:1.4 | 0.0000843 | 0.56 | AML | other | m | 2023-07-18T08:49:32.64 |
IV.NRCA.HHN. | ML:1.5 | 0.00007375 | 0.12 | AML | other | m | 2023-07-18T08:49:35.37 |
IV.NRCA.HHE. | ML:1.5 | 0.00007300000000000001 | 0.72 | AML | other | m | 2023-07-18T08:49:37.82 |
IV.RM33.EHN. | ML:1.4 | 0.00004375 | 1.7 | AML | other | m | 2023-07-18T08:49:38.97 |
IV.RM33.EHE. | ML:1.5 | 0.00006510000000000001 | 0.28 | AML | other | m | 2023-07-18T08:49:39.56 |
IV.CSP1.EHN. | ML:1.9 | 0.00011905 | 1.32 | AML | other | m | 2023-07-18T08:49:40.97 |
IV.CSP1.EHE. | ML:1.9 | 0.00012165 | 1.34 | AML | other | m | 2023-07-18T08:49:41.69 |