A magnitude ML 2.3 earthquake occured in region: 6 km SW Castel San Pietro Terme (BO), on
and geographic coordinates (lat, lon) 44.3630, 11.5310 at 30 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 |
---|---|---|---|---|
Castel San Pietro Terme | BO | 6 | 20811 | 20811 |
Dozza | BO | 8 | 6652 | 27463 |
Casalfiumanese | BO | 10 | 3438 | 30901 |
Ozzano dell'Emilia | BO | 10 | 13596 | 44497 |
Borgo Tossignano | BO | 11 | 3288 | 47785 |
Monterenzio | BO | 11 | 6035 | 53820 |
Fontanelice | BO | 12 | 1943 | 55763 |
Castel Guelfo di Bologna | BO | 14 | 4455 | 60218 |
Imola | BO | 15 | 69797 | 130015 |
Pianoro | BO | 15 | 17460 | 147475 |
San Lazzaro di Savena | BO | 16 | 32065 | 179540 |
Medicina | BO | 16 | 16739 | 196279 |
Castel del Rio | BO | 17 | 1246 | 197525 |
Castenaso | BO | 17 | 14925 | 212450 |
Casola Valsenio | RA | 17 | 2617 | 215067 |
Riolo Terme | RA | 18 | 5720 | 220787 |
Budrio | BO | 20 | 18412 | 239199 |
Loiano | BO | 20 | 4294 | 243493 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.8
ML 2.3 |
2011-05-31 18:07:56 |
44.363 | 11.531 | 31 | 2014-10-21 12:27:13 |
Bollettino Sismico Italiano INGV | 1224749 |
Field | Value |
---|---|
Time (UTC) | 2011-05-31 18:07:56 ± 0.5 |
Latitude | 44.3630 ± 0.0252 |
Longitude | 11.5310 ± 0.0277 |
Depth (km) | 31 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-SISPICK |
Event type | earthquake |
Origin ID | 1224749 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2883 |
Semi-minor axis of confidence ellipse (meter) | 1270 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 158 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 3560.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 303 |
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) | 0.37 |
Epicentral distance of station closest to the epicenter (degree) | 0.09083 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40110 |
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 | 2.3 |
Uncertainty | 0.1 |
Num. used stations | |
Type of magnitude | ML |
Reference to an origin | 1224749 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-06 00:02:19 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | |
Type of magnitude | Md |
Reference to an origin | 1224749 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-06 00:02:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VMG.SHZ. | 2011-05-31T18:08:12.32 | 0.3 | undecidable | manual | Sg | 179 | 44.5221 | -0.069 | 98 | |
IV.FNVD.HHZ. | 2011-05-31T18:08:11.14 | 0.3 | undecidable | manual | Sg | 236 | 38.9277 | 0.025 | 99 | |
IV.SEI.SHZ. | 2011-05-31T18:08:10.47 | 0.3 | undecidable | manual | Sg | 202 | 36.9297 | -0.187 | 96 | |
IV.MTRZ.HHZ. | 2011-05-31T18:08:06.35 | 0.3 | undecidable | manual | Sg | 236 | 10.0788 | 0.223 | 100 | |
IV.VMG.SHZ. | 2011-05-31T18:08:06.25 | 0.3 | undecidable | manual | Pg | 179 | 44.5221 | 0.518 | 87 | |
IV.FNVD.HHZ. | 2011-05-31T18:08:05.10 | 0.3 | undecidable | manual | Pg | 236 | 38.9277 | 0.105 | 98 | |
IV.SEI.SHZ. | 2011-05-31T18:08:04.40 | 0.3 | undecidable | manual | Pg | 202 | 36.9297 | -0.332 | 93 | |
IV.MTRZ.HHZ. | 2011-05-31T18:08:01.84 | 0.3 | undecidable | manual | Pg | 236 | 10.0788 | -0.277 | 99 |