A magnitude Md 2.5 earthquake occured in region: Mar Ionio Settentrionale (MARE), on
and geographic coordinates (lat, lon) 37.8060, 16.8230 at 22 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.
No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5
ML-VAX 1.9 |
1989-02-22 09:20:20 |
37.806 | 16.823 | 22 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 87489 |
Field | Value |
---|---|
Time (UTC) | 1989-02-22 09:20:20 ± 0.917 |
Latitude | 37.8060 ± 0.0472 |
Longitude | 16.8230 ± 0.0529 |
Depth (km) | 22 ± 4 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 87489 |
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) | 7013.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 267 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.6 |
Epicentral distance of station closest to the epicenter (degree) | 0.00559 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01498 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 2.5 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 87489 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:22:06 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 87489 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.PZI.Z. | 1989-02-22T09:21:08.56 | 10.0 | undecidable | manual | SN | 243 | 1.665 | 0.54 | 0.4 | |
--.ATN.Z. | 1989-02-22T09:20:54.50 | 10.0 | undecidable | manual | SN | 288 | 1.1211 | -0.7 | 0.4 | |
--.PZI.Z. | 1989-02-22T09:20:47.20 | 10.0 | undecidable | manual | PN | 243 | 1.665 | -0.78 | 0.7 | |
--.FE2.Z. | 1989-02-22T09:20:43.20 | 10.0 | undecidable | manual | SG | 291 | 0.6216 | 0.68 | 0.5 | |
--.SOI.Z. | 1989-02-22T09:20:42.50 | 10.0 | undecidable | manual | SG | 293 | 0.6549 | -1.2 | 0.1 | |
--.ATN.Z. | 1989-02-22T09:20:41.00 | 10.0 | undecidable | manual | PN | 288 | 1.1211 | 0.6 | 1.2 | |
--.GA2.Z. | 1989-02-22T09:20:37.44 | 10.0 | negative | manual | PN | 294 | 0.8547 | 0.69 | 2.3 | |
--.SC9.Z. | 1989-02-22T09:20:37.67 | 10.0 | undecidable | manual | PN | 297 | 0.9768 | -0.71 | 1.1 | |
--.GMB.Z. | 1989-02-22T09:20:36.33 | 10.0 | undecidable | manual | PN | 294 | 0.8547 | -0.43 | 1.7 | |
--.FE2.Z. | 1989-02-22T09:20:35.32 | 10.0 | undecidable | manual | PG! | 291 | 0.6216 | 2.24 | 0 | |
--.SOI.Z. | 1989-02-22T09:20:34.22 | 10.0 | undecidable | manual | PG | 293 | 0.6549 | 0.46 | 1.6 | |
--.RI2.Z. | 1989-02-22T09:20:33.58 | 10.0 | undecidable | manual | PG | 336 | 0.666 | -0.28 | 1.9 |