A magnitude Md 1.8 earthquake occured in region: Ischia, on
and geographic coordinates (lat, lon) 40.7290, 13.8950 at 1 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
---|---|---|---|---|
Serrara Fontana | NA | 2 | 3173 | 3173 |
Casamicciola Terme | NA | 2 | 8362 | 11535 |
Barano d'Ischia | NA | 3 | 10113 | 21648 |
Lacco Ameno | NA | 3 | 4853 | 26501 |
Forio | NA | 3 | 17615 | 44116 |
Ischia | NA | 4 | 19915 | 64031 |
Procida | NA | 12 | 10530 | 74561 |
Monte di Procida | NA | 15 | 12886 | 87447 |
Bacoli | NA | 17 | 26560 | 114007 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.8 | 2023-04-05 13:35:59 |
40.7292 | 13.8953 | 1 | 2024-03-01 17:18:19 |
Bollettino Sismico Italiano INGV | 124545751 |
Reviewed Rev200 |
Md 1.8 | 2023-04-05 13:35:59 |
40.737 | 13.897 | 1 | 2024-01-08 17:51:18 |
Sala Operativa INGV-OV (Napoli) | 116089681 |
Field | Value |
---|---|
Time (UTC) | 2023-04-05 13:35:59 ± 0.13 |
Latitude | 40.7292 ± 0.0027 |
Longitude | 13.8953 ± 0.0036 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 124545751 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 350 |
Semi-minor axis of confidence ellipse (meter) | 250 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 301 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.35 |
Epicentral distance of station closest to the epicenter (degree) | 0.01439 |
Epicentral distance of station farthest from the epicenter (degree) | 0.03507 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | Md |
Reference to an origin | 124545751 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2024-01-08 17:50:51 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | |
Type of magnitude | Md |
Reference to an origin | 116089681 |
Agency | INGV |
Autore | Sala Operativa INGV-OV (Napoli) |
Time of creation (UTC) | 2023-04-05 14:00:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.IFOR.HHZ. | 2023-04-05T13:36:02.81 | 0.3 | undecidable | manual | S | 240 | 3.8961 | 107 | -0.87 | 58 |
IV.IFOR.HHZ. | 2023-04-05T13:36:02.25 | 0.3 | undecidable | manual | P | 240 | 3.8961 | 107 | 0.29 | 71 |
IV.IBCM.EHZ. | 2023-04-05T13:36:02.29 | 0.6 | undecidable | manual | S | 139 | 2.6973 | 113 | -0.27 | 47 |
IV.IOCA.HHZ. | 2023-04-05T13:36:01.00 | 0.1 | positive | manual | P | 15 | 1.998 | 120 | -0.02 | 100 |
IV.IMTC.HHZ. | 2023-04-05T13:36:01.96 | 0.3 | undecidable | manual | S | 241 | 1.8981 | 122 | 0.08 | 74 |
IV.IBCM.EHZ. | 2023-04-05T13:36:01.38 | 0.1 | undecidable | manual | P | 139 | 2.6973 | 113 | 0.05 | 99 |
IV.ICVJ.EHN. | 2023-04-05T13:36:01.54 | 0.6 | undecidable | manual | S | 360 | 1.5984 | 126 | -0.11 | 49 |
IV.IMTC.HHZ. | 2023-04-05T13:36:01.41 | 0.1 | undecidable | manual | P | 241 | 1.8981 | 122 | 0.46 | 91 |
IV.IOCA.HHZ. | 2023-04-05T13:36:01.59 | 0.6 | undecidable | manual | S | 15 | 1.998 | 120 | -0.41 | 46 |
IV.ICVJ.EHN. | 2023-04-05T13:36:00.99 | 0.1 | undecidable | manual | P | 360 | 1.5984 | 126 | 0.17 | 97 |