A magnitude Md 2.3 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on
and geographic coordinates (lat, lon) 38.7260, 15.6670 at 10 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.
No Italian municipalities within 20 km distance.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 1.8 |
1987-07-31 08:05:01 |
38.726 | 15.667 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53099 |
Field | Value |
---|---|
Time (UTC) | 1987-07-31 08:05:01 ± 0.526 |
Latitude | 38.7260 ± 0.0256 |
Longitude | 15.6670 ± 0.0447 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53099 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 4814.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 200 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.7 |
Epicentral distance of station closest to the epicenter (degree) | 0.00526 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00777 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 53099 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:13 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 53099 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CZI.Z. | 1987-07-31T08:05:22.40 | 10.0 | undecidable | manual | SG | 36 | 0.5994 | -0.37 | 0.7 | |
--.GRI.Z. | 1987-07-31T08:05:22.68 | 10.0 | undecidable | manual | SG | 80 | 0.5883 | 0.44 | 0.7 | |
--.ATN.Z. | 1987-07-31T08:05:22.58 | 10.0 | undecidable | manual | SG | 196 | 0.5883 | 0.48 | 0.6 | |
--.SE2.Z. | 1987-07-31T08:05:20.20 | 10.0 | undecidable | manual | PG | 71 | 0.8658 | 1.78 | 0.2 | |
--.SO9.Z. | 1987-07-31T08:05:14.91 | 10.0 | undecidable | manual | PG | 155 | 0.7215 | -0.81 | 1.2 | |
--.RI2.Z. | 1987-07-31T08:05:14.60 | 10.0 | undecidable | manual | PG | 115 | 0.6993 | -0.89 | 1.1 | |
--.GRI.Z. | 1987-07-31T08:05:13.58 | 10.0 | undecidable | manual | PG | 80 | 0.5883 | 0.21 | 1.8 | |
--.ATN.Z. | 1987-07-31T08:05:13.78 | 10.0 | undecidable | manual | PG | 196 | 0.5883 | 0.49 | 1.6 | |
--.CZI.Z. | 1987-07-31T08:05:12.80 | 10.0 | undecidable | manual | PG | 36 | 0.5994 | -0.87 | 1.1 |