A magnitude ML 1.8 earthquake occured in region: 9 km NW Piazza Armerina (EN), on
and geographic coordinates (lat, lon) 37.4400, 14.2880 at 33 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 |
---|---|---|---|---|
Piazza Armerina | EN | 9 | 21886 | 21886 |
Barrafranca | EN | 10 | 13380 | 35266 |
Valguarnera Caropepe | EN | 11 | 7866 | 43132 |
Pietraperzia | EN | 13 | 7013 | 50145 |
Enna | EN | 14 | 28019 | 78164 |
Aidone | EN | 14 | 4889 | 83053 |
Mazzarino | CL | 16 | 12145 | 95198 |
Calascibetta | EN | 17 | 4528 | 99726 |
San Cono | CT | 18 | 2697 | 102423 |
Mirabella Imbaccari | CT | 19 | 4912 | 107335 |
Villarosa | EN | 19 | 4937 | 112272 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.8 | 2023-12-19 20:22:18 |
37.4405 | 14.2878 | 33 | 2023-12-19 20:40:28 |
Sala Sismica INGV-Roma | 124148641 |
Field | Value |
---|---|
Time (UTC) | 2023-12-19 20:22:18 ± 0.34 |
Latitude | 37.4405 ± 0.0135 |
Longitude | 14.2878 ± 0.0204 |
Depth (km) | 33 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 124148641 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1951 |
Semi-minor axis of confidence ellipse (meter) | 1000 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 229 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1950.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 143 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.46 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.81928 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 124148641 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-12-19 20:40:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CET2.HHZ. | 2023-12-19T20:23:24.40 | 3.0 | undecidable | manual | Sn | -0.26 | 0 | |||
IV.LATB.EHZ. | 2023-12-19T20:23:20.39 | 3.0 | negative | manual | Pn | 2.19 | 0 | |||
IV.CET2.HHZ. | 2023-12-19T20:22:59.71 | 3.0 | positive | manual | Pg | 4.57 | 0 | |||
IV.SPS2.HHZ. | 2023-12-19T20:22:58.35 | 3.0 | negative | manual | Pn | 3.22 | 0 | |||
IV.HAVL.HHZ. | 2023-12-19T20:22:46.16 | 0.3 | undecidable | manual | S | 126 | 90.9423 | 106 | 0.21 | 70 |
IV.CIMI.HHE. | 2023-12-19T20:22:43.35 | 0.1 | undecidable | manual | S | 308 | 79.6647 | 108 | 0.31 | 93 |
IV.SSY.HHZ. | 2023-12-19T20:22:42.92 | 0.3 | undecidable | manual | S | 114 | 76.0683 | 109 | 0.77 | 61 |
IV.PLLN.EHE. | 2023-12-19T20:22:38.57 | 0.1 | undecidable | manual | S | 348 | 62.5929 | 113 | -0.21 | 99 |
IV.HLNI.HHZ. | 2023-12-19T20:22:36.74 | 0.3 | undecidable | manual | S | 101 | 52.503 | 118 | 0.39 | 73 |
IV.ACATE.EHZ. | 2023-12-19T20:22:36.22 | 0.6 | undecidable | manual | S | 158 | 49.9167 | 119 | 0.47 | 48 |
IV.HVZN.HHZ. | 2023-12-19T20:22:35.20 | 0.3 | undecidable | manual | S | 128 | 47.619 | 120 | -0.02 | 79 |
IV.HAVL.HHZ. | 2023-12-19T20:22:33.55 | 0.1 | undecidable | manual | P | 126 | 90.9423 | 106 | -0.75 | 79 |
IV.CIMI.HHE. | 2023-12-19T20:22:32.97 | 0.1 | undecidable | manual | P | 308 | 79.6647 | 108 | 0.35 | 93 |
IV.SSY.HHZ. | 2023-12-19T20:22:31.80 | 0.6 | negative | manual | P | 114 | 76.0683 | 109 | -0.31 | 47 |
IV.PLLN.EHE. | 2023-12-19T20:22:30.30 | 0.1 | undecidable | manual | P | 348 | 62.5929 | 113 | 0.14 | 100 |
IV.HLNI.HHZ. | 2023-12-19T20:22:28.07 | 0.6 | positive | manual | P | 101 | 52.503 | 118 | -0.69 | 44 |
IV.ACATE.EHZ. | 2023-12-19T20:22:28.94 | 0.1 | undecidable | manual | P | 158 | 49.9167 | 119 | 0.53 | 94 |
IV.GIB.HHZ. | 2023-12-19T20:22:28.90 | 3.0 | undecidable | manual | P | 0.21 | 0 | |||
IV.HVZN.HHZ. | 2023-12-19T20:22:27.74 | 0.1 | undecidable | manual | P | 128 | 47.619 | 120 | -0.36 | 98 |
IV.CSLB.HHZ. | 2023-12-19T20:22:27.32 | 3.0 | positive | manual | P | -0.36 | 0 | |||
IV.RAFF.HHZ. | 2023-12-19T20:22:24.50 | 0.1 | positive | manual | P | 165 | 25.0527 | 140 | -0.91 | 84 |
IV.RESU.HHZ. | 2023-12-19T20:22:23.80 | 3.0 | negative | manual | P | 0.2 | 0 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.RESU.HHE. | ML:1.4 | 0.00006984999999999999 | 0.54 | AML | other | m | 2023-12-19T20:22:24.64 |
IV.RESU.HHN. | ML:1.5 | 0.0000877 | 0.44 | AML | other | m | 2023-12-19T20:22:27.83 |
IV.RAFF.HHN. | ML:1.8 | 0.0001995 | 0.24 | AML | other | m | 2023-12-19T20:22:31.80 |
IV.RAFF.HNN. | ML:1.5 | 0.0001023 | 0.26 | AML | other | m | 2023-12-19T20:22:31.79 |
IV.RAFF.HHE. | ML:1.7 | 0.000186 | 0.22 | AML | other | m | 2023-12-19T20:22:32.16 |
IV.RAFF.HNE. | ML:1.4 | 0.00009504999999999999 | 0.2 | AML | other | m | 2023-12-19T20:22:32.16 |
IV.HVZN.HHE. | ML:2.0 | 0.00020800000000000001 | 0.5 | AML | other | m | 2023-12-19T20:22:37.84 |
IV.HVZN.HHN. | ML:2.1 | 0.00025 | 1.5 | AML | other | m | 2023-12-19T20:22:39.89 |
IV.HVZN.HNN. | ML:2.1 | 0.000256 | 0.32 | AML | other | m | 2023-12-19T20:22:39.75 |
IV.GIB.HHN. | ML:1.7 | 0.00008424999999999999 | 0.82 | AML | other | m | 2023-12-19T20:22:42.41 |
IV.HVZN.HNE. | ML:2.0 | 0.000224 | 0.9 | AML | other | m | 2023-12-19T20:22:44.12 |
IV.GIB.HHE. | ML:1.7 | 0.00007895 | 1.22 | AML | other | m | 2023-12-19T20:22:44.31 |
IV.HAVL.HHN. | ML:2.2 | 0.000179 | 1.08 | AML | other | m | 2023-12-19T20:22:47.64 |
IV.HAVL.HHE. | ML:2.1 | 0.0001445 | 0.2 | AML | other | m | 2023-12-19T20:22:47.25 |