A magnitude ML 1.8 earthquake occured in region: 5 km SW Ragusa (RG), on
and geographic coordinates (lat, lon) 36.8920, 14.6900 at 2 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 |
---|---|---|---|---|
Ragusa | RG | 5 | 73313 | 73313 |
Modica | RG | 7 | 54633 | 127946 |
Comiso | RG | 10 | 30156 | 158102 |
Scicli | RG | 11 | 27077 | 185179 |
Vittoria | RG | 15 | 63339 | 248518 |
Chiaramonte Gulfi | RG | 16 | 8238 | 256756 |
Santa Croce Camerina | RG | 16 | 10823 | 267579 |
Giarratana | RG | 20 | 3048 | 270627 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
Md 1.9
ML 1.8 |
2023-08-13 21:28:26 |
36.8915 | 14.69 | 2 | 2023-08-13 21:36:24 |
Sala Sismica INGV-Roma | 120098891 |
Field | Value |
---|---|
Time (UTC) | 2023-08-13 21:28:26 ± 0.6 |
Latitude | 36.8915 ± 0.0099 |
Longitude | 14.6900 ± 0.0281 |
Depth (km) | 2 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 120098891 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2499 |
Semi-minor axis of confidence ellipse (meter) | 1039 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 95 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2500.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 283 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.13760 |
Epicentral distance of station farthest from the epicenter (degree) | 0.42178 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 120098891 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-08-13 21:36:24 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | 0.7 |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 120098891 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-08-13 21:36:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RAFF.HHZ. | 2023-08-13T21:28:43.44 | 0.1 | undecidable | manual | S | 322 | 46.8198 | 93 | 0.73 | 78 |
IV.RAFF.HHZ. | 2023-08-13T21:28:35.47 | 0.6 | positive | manual | P | 322 | 46.8198 | 93 | -0.37 | 44 |
IV.ACATE.EHZ. | 2023-08-13T21:28:34.09 | 0.1 | undecidable | manual | S | 311 | 22.3554 | 95 | -0.14 | 96 |
IV.HVIT.HHZ. | 2023-08-13T21:28:32.69 | 0.1 | undecidable | manual | S | 307 | 18.6702 | 96 | -0.29 | 94 |
IV.CROCE.HHZ. | 2023-08-13T21:28:31.82 | 0.1 | undecidable | manual | S | 245 | 15.2736 | 98 | 0.02 | 100 |
IV.HVIT.HHZ. | 2023-08-13T21:28:30.15 | 0.1 | negative | manual | P | 307 | 18.6702 | 96 | -0.07 | 98 |
IV.ACATE.EHZ. | 2023-08-13T21:28:30.74 | 0.3 | negative | manual | P | 311 | 22.3554 | 95 | -0.2 | 71 |
IV.CROCE.HHZ. | 2023-08-13T21:28:29.73 | 0.1 | positive | manual | P | 245 | 15.2736 | 98 | 0.19 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HVIT.HHE. | ML:1.8 | 0.0006505 | 0.26 | AML | other | m | 2023-08-13T21:28:33.38 |
IV.HVIT.HHN. | ML:1.9 | 0.0008285 | 0.8 | AML | other | m | 2023-08-13T21:28:33.49 |
IV.ACATE.HNE. | ML:1.8 | 0.000427 | 1.02 | AML | other | m | 2023-08-13T21:28:36.53 |
IV.ACATE.EHE. | ML:1.7 | 0.000407 | 0.24 | AML | other | m | 2023-08-13T21:28:36.53 |
IV.ACATE.EHN. | ML:1.8 | 0.00046800000000000005 | 1.54 | AML | other | m | 2023-08-13T21:28:36.06 |
IV.ACATE.HNN. | ML:1.8 | 0.0004375 | 1.54 | AML | other | m | 2023-08-13T21:28:36.06 |