A magnitude ML 1.7 earthquake occured in region: 4 km W Monterenzio (BO), on
and geographic coordinates (lat, lon) 44.3160, 11.3600 at 28 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 |
---|---|---|---|---|
Monterenzio | BO | 4 | 6035 | 6035 |
Loiano | BO | 6 | 4294 | 10329 |
Pianoro | BO | 8 | 17460 | 27789 |
Monzuno | BO | 8 | 6328 | 34117 |
Monghidoro | BO | 11 | 3749 | 37866 |
Marzabotto | BO | 13 | 6779 | 44645 |
Sasso Marconi | BO | 13 | 14735 | 59380 |
San Benedetto Val di Sambro | BO | 15 | 4315 | 63695 |
Castel del Rio | BO | 16 | 1246 | 64941 |
Fontanelice | BO | 17 | 1943 | 66884 |
Ozzano dell'Emilia | BO | 17 | 13596 | 80480 |
Grizzana Morandi | BO | 18 | 3916 | 84396 |
San Lazzaro di Savena | BO | 18 | 32065 | 116461 |
Borgo Tossignano | BO | 19 | 3288 | 119749 |
Casalecchio di Reno | BO | 20 | 36327 | 156076 |
Vergato | BO | 20 | 7639 | 163715 |
Bologna | BO | 20 | 386663 | 550378 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-07-18 20:22:48 |
44.3157 | 11.3597 | 28 | 2021-12-29 11:12:49 |
Bollettino Sismico Italiano INGV | 97200721 |
Reviewed Rev100 |
ML 1.4 | 2021-07-18 20:22:49 |
44.296 | 11.3492 | 26 | 2021-07-18 20:40:33 |
Sala Sismica INGV-Roma | 92931301 |
Field | Value |
---|---|
Time (UTC) | 2021-07-18 20:22:48 ± 0.48 |
Latitude | 44.3157 ± 0.0180 |
Longitude | 11.3597 ± 0.0251 |
Depth (km) | 28 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97200721 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1978 |
Semi-minor axis of confidence ellipse (meter) | 1599 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 97 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1980.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 225 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.38 |
Epicentral distance of station closest to the epicenter (degree) | 0.04676 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53959 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 97200721 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-03 14:06:37 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 92931301 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-18 20:40:33 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SFI.HNN. | 2021-07-18T20:23:08.90 | 0.6 | undecidable | manual | S | 139 | 59.8956 | 109 | 0.81 | 36 |
IV.BOSL.HHE. | 2021-07-18T20:23:04.16 | 0.6 | undecidable | manual | S | 178 | 42.7239 | 117 | 0.3 | 45 |
IV.LMD.HHZ. | 2021-07-18T20:23:02.77 | 0.6 | undecidable | manual | S | 134 | 38.2284 | 120 | -0.04 | 48 |
IV.SFI.HNN. | 2021-07-18T20:23:00.00 | 0.3 | undecidable | manual | P | 139 | 59.8956 | 109 | 0.01 | 70 |
IV.SEI.HHZ. | 2021-07-18T20:23:00.31 | 0.6 | undecidable | manual | S | 180 | 29.0487 | 128 | -0.46 | 45 |
IV.FNVD.HHZ. | 2021-07-18T20:22:59.71 | 0.6 | undecidable | manual | S | 229 | 24.9528 | 133 | -0.24 | 47 |
IV.VISG.HHZ. | 2021-07-18T20:22:57.26 | 0.6 | undecidable | manual | S | 157 | 15.2736 | 148 | -1.04 | 37 |
IV.MTRZ.HHZ. | 2021-07-18T20:22:57.77 | 0.3 | undecidable | manual | S | 94 | 5.1948 | 168 | 0.5 | 69 |
IV.BOSL.HHE. | 2021-07-18T20:22:57.77 | 0.3 | undecidable | manual | P | 178 | 42.7239 | 117 | 0.23 | 69 |
IV.LMD.HHZ. | 2021-07-18T20:22:56.74 | 0.1 | undecidable | manual | P | 134 | 38.2284 | 120 | -0.2 | 93 |
IV.SEI.HHZ. | 2021-07-18T20:22:55.59 | 0.1 | undecidable | manual | P | 180 | 29.0487 | 128 | -0.17 | 95 |
IV.FNVD.HHZ. | 2021-07-18T20:22:55.88 | 0.3 | undecidable | manual | P | 229 | 24.9528 | 133 | 0.59 | 65 |
IV.VISG.HHZ. | 2021-07-18T20:22:53.88 | 0.1 | undecidable | manual | P | 157 | 15.2736 | 148 | -0.45 | 92 |
IV.MTRZ.HHZ. | 2021-07-18T20:22:53.88 | 0.1 | undecidable | manual | P | 94 | 5.1948 | 168 | 0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRZ.HHN. | ML:0.0 | 0.00046464255 | 0.2944 | AML | other | m | 2021-07-18T20:22:57.95 |
IV.MTRZ.HHE. | ML:0.0 | 0.00051644365 | 0.2432 | AML | other | m | 2021-07-18T20:22:58.49 |
IV.MTRZ.HNE. | ML:0.0 | 0.00051608355 | 0.256 | AML | other | m | 2021-07-18T20:22:58.50 |
IV.MTRZ.HNN. | ML:0.0 | 0.000428268 | 0.2688 | AML | other | m | 2021-07-18T20:22:59.26 |
IV.SEI.HHN. | ML:1.6 | 0.000128161845 | 0.3584 | AML | other | m | 2021-07-18T20:23:01.36 |
IV.SEI.HHE. | ML:1.3 | 0.000070638665 | 0.1248 | AML | other | m | 2021-07-18T20:23:01.56 |
IV.LMD.HHE. | ML:0.9 | 0.000025221194999999998 | 0.256 | AML | other | m | 2021-07-18T20:23:03.65 |
IV.LMD.HHN. | ML:0.8 | 0.000018122285 | 0.2176 | AML | other | m | 2021-07-18T20:23:03.55 |