A magnitude ML 1.1 earthquake occured in region: 7 km NE Monterenzio (BO), on
and geographic coordinates (lat, lon) 44.3620, 11.4810 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 |
---|---|---|---|---|
Monterenzio | BO | 7 | 6035 | 6035 |
Ozzano dell'Emilia | BO | 9 | 13596 | 19631 |
Castel San Pietro Terme | BO | 10 | 20811 | 40442 |
Pianoro | BO | 11 | 17460 | 57902 |
Dozza | BO | 12 | 6652 | 64554 |
Borgo Tossignano | BO | 13 | 3288 | 67842 |
Casalfiumanese | BO | 13 | 3438 | 71280 |
Fontanelice | BO | 13 | 1943 | 73223 |
San Lazzaro di Savena | BO | 13 | 32065 | 105288 |
Loiano | BO | 16 | 4294 | 109582 |
Castenaso | BO | 16 | 14925 | 124507 |
Castel del Rio | BO | 17 | 1246 | 125753 |
Castel Guelfo di Bologna | BO | 18 | 4455 | 130208 |
Medicina | BO | 18 | 16739 | 146947 |
Bologna | BO | 18 | 386663 | 533610 |
Imola | BO | 19 | 69797 | 603407 |
Casola Valsenio | RA | 19 | 2617 | 606024 |
Sasso Marconi | BO | 19 | 14735 | 620759 |
Monzuno | BO | 19 | 6328 | 627087 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.1 | 2021-07-18 20:39:55 |
44.3622 | 11.4812 | 30 | 2021-12-29 11:12:49 |
Bollettino Sismico Italiano INGV | 97200741 |
Reviewed Rev100 |
ML 1.1 | 2021-07-18 20:39:55 |
44.315 | 11.4465 | 30 | 2021-07-18 21:01:06 |
Sala Sismica INGV-Roma | 92931551 |
Field | Value |
---|---|
Time (UTC) | 2021-07-18 20:39:55 ± 0.56 |
Latitude | 44.3622 ± 0.0216 |
Longitude | 11.4812 ± 0.0189 |
Depth (km) | 30 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97200741 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2081 |
Semi-minor axis of confidence ellipse (meter) | 1270 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 353 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2080.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 265 |
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) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.06385 |
Epicentral distance of station farthest from the epicenter (degree) | 0.43797 |
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 | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 92931551 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-18 21:01:06 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 97200741 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-03 14:08:11 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BOSL.HHE. | 2021-07-18T20:40:12.55 | 0.6 | undecidable | manual | S | 190 | 48.618 | 116 | 0.69 | 42 |
IV.SEI.HHN. | 2021-07-18T20:40:08.55 | 0.6 | undecidable | manual | S | 196 | 35.5422 | 125 | -0.31 | 54 |
IV.LMD.HHZ. | 2021-07-18T20:40:08.82 | 0.6 | undecidable | manual | S | 150 | 36.3414 | 124 | -0.21 | 54 |
IV.BRIS.HHZ. | 2021-07-18T20:40:06.90 | 0.6 | undecidable | manual | S | 124 | 27.3504 | 133 | -0.26 | 56 |
IV.BOSL.HHE. | 2021-07-18T20:40:05.00 | 0.3 | undecidable | manual | P | 190 | 48.618 | 116 | 0.16 | 80 |
IV.MTRZ.HHZ. | 2021-07-18T20:40:04.87 | 0.3 | undecidable | manual | S | 219 | 7.0929 | 165 | 0.56 | 72 |
IV.VISG.HHZ. | 2021-07-18T20:40:04.73 | 0.6 | undecidable | manual | S | 191 | 19.5693 | 143 | -1.05 | 46 |
IV.LMD.HHZ. | 2021-07-18T20:40:03.27 | 0.3 | undecidable | manual | P | 150 | 36.3414 | 124 | 0.07 | 82 |
IV.BRIS.HHZ. | 2021-07-18T20:40:02.45 | 0.3 | undecidable | manual | P | 124 | 27.3504 | 133 | 0.33 | 80 |
IV.SEI.HHN. | 2021-07-18T20:40:02.85 | 0.3 | undecidable | manual | P | 196 | 35.5422 | 125 | -0.25 | 77 |
IV.VISG.HHZ. | 2021-07-18T20:40:00.85 | 0.1 | undecidable | manual | P | 191 | 19.5693 | 143 | -0.47 | 100 |
IV.MTRZ.HHZ. | 2021-07-18T20:40:00.38 | 0.6 | undecidable | manual | P | 219 | 7.0929 | 165 | -0.09 | 55 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHN. | ML:1.2 | 0.00006975 | 1.36 | AML | other | m | 2021-07-18T20:40:04.99 |
IV.VISG.HHE. | ML:1.0 | 0.00003755 | 0.22 | AML | other | m | 2021-07-18T20:40:05.25 |