A magnitude ML 1.3 earthquake occured in region: 3 km SW Riolo Terme (RA), on
and geographic coordinates (lat, lon) 44.2610, 11.6940 at 24 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 |
---|---|---|---|---|
Riolo Terme | RA | 3 | 5720 | 5720 |
Casola Valsenio | RA | 7 | 2617 | 8337 |
Casalfiumanese | BO | 7 | 3438 | 11775 |
Brisighella | RA | 7 | 7639 | 19414 |
Borgo Tossignano | BO | 9 | 3288 | 22702 |
Imola | BO | 11 | 69797 | 92499 |
Fontanelice | BO | 11 | 1943 | 94442 |
Castel Bolognese | RA | 11 | 9554 | 103996 |
Dozza | BO | 12 | 6652 | 110648 |
Modigliana | FC | 14 | 4560 | 115208 |
Faenza | RA | 15 | 58541 | 173749 |
Castel del Rio | BO | 16 | 1246 | 174995 |
Solarolo | RA | 16 | 4488 | 179483 |
Castel San Pietro Terme | BO | 18 | 20811 | 200294 |
Bagnara di Romagna | RA | 18 | 2429 | 202723 |
Mordano | BO | 18 | 4760 | 207483 |
Castel Guelfo di Bologna | BO | 19 | 4455 | 211938 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.3 | 2021-08-13 07:05:04 |
44.2608 | 11.6943 | 24 | 2021-12-29 11:12:52 |
Bollettino Sismico Italiano INGV | 97516361 |
Reviewed Rev100 |
ML 1.1 | 2021-08-13 07:05:05 |
44.2672 | 11.6883 | 20 | 2021-08-13 07:11:48 |
Sala Sismica INGV-Roma | 94065841 |
Field | Value |
---|---|
Time (UTC) | 2021-08-13 07:05:04 ± 0.32 |
Latitude | 44.2608 ± 0.0108 |
Longitude | 11.6943 ± 0.0126 |
Depth (km) | 24 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97516361 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1033 |
Semi-minor axis of confidence ellipse (meter) | 713 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 181 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1030.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 106 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31746 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 97516361 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-17 11:10:06 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 94065841 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-13 07:11:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PESA.HHZ. | 2021-08-13T07:05:24.14 | 3.0 | undecidable | manual | P | 0.83 | 0 | |||
GU.POPM.HHZ. | 2021-08-13T07:05:17.84 | 3.0 | undecidable | manual | P | -0.3 | 0 | |||
IV.SEI.HHZ. | 2021-08-13T07:05:17.73 | 0.3 | undecidable | manual | S | 229 | 35.2425 | 117 | 0.15 | 71 |
IV.MTRZ.HNZ. | 2021-08-13T07:05:15.00 | 0.6 | undecidable | manual | S | 285 | 22.1556 | 131 | 0.32 | 47 |
IV.VISG.HHZ. | 2021-08-13T07:05:14.13 | 0.6 | undecidable | manual | S | 249 | 22.1556 | 131 | -0.55 | 44 |
IV.LMD.HHZ. | 2021-08-13T07:05:14.50 | 0.3 | undecidable | manual | S | 177 | 20.3685 | 134 | 0.17 | 71 |
IV.SEI.HHZ. | 2021-08-13T07:05:12.52 | 0.3 | undecidable | manual | P | 229 | 35.2425 | 117 | 0.3 | 69 |
IV.BRIS.HHZ. | 2021-08-13T07:05:12.06 | 0.6 | undecidable | manual | S | 125 | 6.993 | 161 | -0.33 | 48 |
IV.IMOL.EHZ. | 2021-08-13T07:05:12.92 | 0.3 | undecidable | manual | S | 19 | 11.5773 | 151 | 0.03 | 76 |
IV.MTRZ.HNZ. | 2021-08-13T07:05:11.00 | 0.3 | undecidable | manual | P | 285 | 22.1556 | 131 | 0.46 | 69 |
IV.VISG.HHZ. | 2021-08-13T07:05:10.25 | 0.1 | undecidable | manual | P | 249 | 22.1556 | 131 | -0.29 | 93 |
IV.LMD.HHZ. | 2021-08-13T07:05:10.42 | 0.1 | undecidable | manual | P | 177 | 20.3685 | 134 | 0.08 | 98 |
IV.BRIS.HHZ. | 2021-08-13T07:05:09.11 | 0.1 | positive | manual | P | 125 | 6.993 | 161 | -0.11 | 100 |
IV.IMOL.EHZ. | 2021-08-13T07:05:09.26 | 0.3 | undecidable | manual | P | 19 | 11.5773 | 151 | -0.25 | 72 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.BRIS.HHN. | ML:1.6 | 0.0002485 | 0.34 | AML | other | m | 2021-08-13T07:05:12.38 |
IV.BRIS.HHE. | ML:1.6 | 0.00023899999999999998 | 0.4 | AML | other | m | 2021-08-13T07:05:12.16 |
IV.IMOL.HNE. | ML:1.6 | 0.00023768135 | 0.1184 | AML | other | m | 2021-08-13T07:05:13.29 |
IV.IMOL.HNN. | ML:1.9 | 0.00053091855 | 0.1504 | AML | other | m | 2021-08-13T07:05:13.45 |
IV.VISG.HHN. | ML:0.9 | 0.00003755 | 1.06 | AML | other | m | 2021-08-13T07:05:16.54 |
IV.VISG.HHE. | ML:1.0 | 0.00004365 | 1 | AML | other | m | 2021-08-13T07:05:16.88 |
IV.LMD.HHN. | ML:1.1 | 0.00006469999999999999 | 0.68 | AML | other | m | 2021-08-13T07:05:16.80 |
IV.LMD.HHE. | ML:1.1 | 0.0000582 | 1.3 | AML | other | m | 2021-08-13T07:05:16.28 |