A magnitude ML 1.5 earthquake occured in region: 1 km NE Montecastrilli (TR), on
and geographic coordinates (lat, lon) 42.6540, 12.4950 at 4 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 |
---|---|---|---|---|
Montecastrilli | TR | 1 | 5022 | 5022 |
Avigliano Umbro | TR | 5 | 2558 | 7580 |
Acquasparta | TR | 6 | 4778 | 12358 |
San Gemini | TR | 6 | 5018 | 17376 |
Amelia | TR | 12 | 11897 | 29273 |
Massa Martana | PG | 14 | 3770 | 33043 |
Narni | TR | 15 | 19785 | 52828 |
Lugnano in Teverina | TR | 16 | 1494 | 54322 |
Terni | TR | 16 | 111501 | 165823 |
Todi | PG | 16 | 16851 | 182674 |
Guardea | TR | 16 | 1836 | 184510 |
Montecchio | TR | 17 | 1676 | 186186 |
Alviano | TR | 18 | 1463 | 187649 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.5 | 2023-08-23 19:33:15 |
42.6538 | 12.4952 | 4 | 2023-08-23 19:49:04 |
Sala Sismica INGV-Roma | 120417931 |
Field | Value |
---|---|
Time (UTC) | 2023-08-23 19:33:15 ± 0.15 |
Latitude | 42.6538 ± 0.0072 |
Longitude | 12.4952 ± 0.0061 |
Depth (km) | 4 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 120417931 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 703 |
Semi-minor axis of confidence ellipse (meter) | 436 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 23 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 700.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 118 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 30 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.77791 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.1 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 120417931 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-08-23 19:49:04 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CAFI.HHN. | 2023-08-23T19:33:43.01 | 0.6 | undecidable | manual | S | 330 | 86.3469 | 50 | 0.12 | 45 |
IV.CSP1.EHZ. | 2023-08-23T19:33:40.13 | 0.6 | undecidable | manual | S | 50 | 75.4689 | 50 | 0.16 | 46 |
IV.MCIV.CHE. | 2023-08-23T19:33:38.54 | 0.6 | undecidable | manual | S | 282 | 68.1762 | 50 | 0.51 | 43 |
IV.SMA1.EHZ. | 2023-08-23T19:33:38.72 | 0.6 | undecidable | manual | S | 92 | 68.5758 | 50 | 0.57 | 42 |
IV.MC2.EHZ. | 2023-08-23T19:33:37.30 | 0.6 | undecidable | manual | S | 63 | 63.2922 | 50 | 0.56 | 43 |
IV.MURB.HHE. | 2023-08-23T19:33:37.80 | 0.6 | undecidable | manual | S | 2 | 67.5768 | 50 | -0.09 | 47 |
IV.RM33.EHZ. | 2023-08-23T19:33:36.23 | 0.6 | undecidable | manual | S | 105 | 60.8946 | 50 | 0.13 | 47 |
IV.NRCA.HHZ. | 2023-08-23T19:33:34.00 | 0.6 | undecidable | manual | S | 68 | 54.2013 | 50 | -0.31 | 46 |
IV.CESI.HHE. | 2023-08-23T19:33:33.10 | 0.6 | undecidable | manual | S | 40 | 51.2154 | 50 | -0.42 | 45 |
IV.SACS.HNN. | 2023-08-23T19:33:33.81 | 0.6 | undecidable | manual | S | 295 | 52.4031 | 50 | -0.01 | 49 |
IV.CAFI.HHN. | 2023-08-23T19:33:31.05 | 0.1 | undecidable | manual | P | 330 | 86.3469 | 50 | -0.43 | 85 |
IV.LNSS.HHZ. | 2023-08-23T19:33:31.21 | 0.6 | undecidable | manual | S | 97 | 44.8218 | 96 | -0.31 | 47 |
IV.GUMA.HHZ. | 2023-08-23T19:33:31.22 | 0.6 | undecidable | manual | P | 56 | 81.9513 | 50 | 0.41 | 43 |
IV.ASSB.HHZ. | 2023-08-23T19:33:30.44 | 0.6 | undecidable | manual | S | -0.41 | 0.95 | |||
IV.TSM2.DHE. | 2023-08-23T19:33:30.64 | 0.1 | undecidable | manual | P | 360 | 82.3509 | 50 | -0.22 | 89 |
IV.SMA1.EHZ. | 2023-08-23T19:33:29.20 | 0.6 | undecidable | manual | P | 92 | 68.5758 | 50 | 0.46 | 43 |
IV.CSP1.EHZ. | 2023-08-23T19:33:29.49 | 0.3 | undecidable | manual | P | 50 | 75.4689 | 50 | -0.3 | 67 |
IV.MTCE.HHN. | 2023-08-23T19:33:29.20 | 1.0 | undecidable | manual | P | 164 | 72.8715 | 50 | -0.19 | 23 |
IV.MC2.EHZ. | 2023-08-23T19:33:28.37 | 0.1 | undecidable | manual | P | 63 | 63.2922 | 50 | 0.44 | 88 |
IV.MURB.HHE. | 2023-08-23T19:33:28.49 | 0.1 | undecidable | manual | P | 2 | 67.5768 | 50 | -0.1 | 94 |
IV.MCIV.CHE. | 2023-08-23T19:33:28.93 | 0.3 | undecidable | manual | P | 282 | 68.1762 | 50 | 0.26 | 68 |
IV.RM33.EHZ. | 2023-08-23T19:33:27.76 | 1.0 | undecidable | manual | P | 105 | 60.8946 | 50 | 0.2 | 23 |
IV.MML1.EHZ. | 2023-08-23T19:33:27.16 | 3.0 | undecidable | manual | S | 0 | ||||
IV.GAVE.HNE. | 2023-08-23T19:33:26.86 | 0.6 | undecidable | manual | S | 82 | 32.8449 | 98 | -0.51 | 46 |
IV.NRCA.HHZ. | 2023-08-23T19:33:26.14 | 0.3 | undecidable | manual | P | 68 | 54.2013 | 50 | -0.38 | 68 |
IV.MML1.EHZ. | 2023-08-23T19:33:25.41 | 3.0 | undecidable | manual | P | 0 | ||||
IV.CESI.HHE. | 2023-08-23T19:33:25.75 | 0.1 | undecidable | manual | P | 40 | 51.2154 | 50 | -0.31 | 93 |
IV.SACS.HNN. | 2023-08-23T19:33:25.91 | 0.1 | undecidable | manual | P | 295 | 52.4031 | 50 | -0.33 | 92 |
IV.LNSS.HHZ. | 2023-08-23T19:33:25.00 | 0.3 | undecidable | manual | P | 97 | 44.8218 | 96 | 0.09 | 74 |
IT.GNU.HGN. | 2023-08-23T19:33:22.56 | 0.6 | undecidable | manual | S | 20 | 17.7711 | 104 | 0.35 | 49 |
IV.GAVE.HNE. | 2023-08-23T19:33:22.41 | 0.1 | undecidable | manual | P | 82 | 32.8449 | 98 | -0.11 | 100 |
IT.GNU.HGN. | 2023-08-23T19:33:20.04 | 0.1 | undecidable | manual | P | 20 | 17.7711 | 104 | 0.5 | 94 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHE. | ML:1.5 | 0.00009655 | 1.26 | AML | other | m | 2023-08-23T19:33:32.26 |
IV.LNSS.HHN. | ML:1.4 | 0.00008679999999999998 | 0.48 | AML | other | m | 2023-08-23T19:33:33.42 |
IV.NRCA.HHN. | ML:1.5 | 0.00008005000000000001 | 0.14 | AML | other | m | 2023-08-23T19:33:35.46 |
IV.NRCA.HHE. | ML:1.5 | 0.00008124999999999998 | 1.86 | AML | other | m | 2023-08-23T19:33:35.98 |
IV.SMA1.EHN. | ML:1.4 | 0.000045950000000000006 | 1.46 | AML | other | m | 2023-08-23T19:33:40.06 |
IV.SMA1.EHE. | ML:1.5 | 0.000051000000000000006 | 0.68 | AML | other | m | 2023-08-23T19:33:40.45 |
IV.RM33.EHE. | ML:1.3 | 0.0000447 | 0.36 | AML | other | m | 2023-08-23T19:33:40.24 |
IV.RM33.EHN. | ML:1.2 | 0.0000281 | 0.48 | AML | other | m | 2023-08-23T19:33:41.61 |
IV.CSP1.EHN. | ML:1.6 | 0.000059999999999999995 | 1.24 | AML | other | m | 2023-08-23T19:33:46.76 |
IV.CSP1.EHE. | ML:1.6 | 0.0000605 | 1.46 | AML | other | m | 2023-08-23T19:33:46.10 |