A magnitude ML 0.9 earthquake occured in region: 2 km W Riolo Terme (RA), on
and geographic coordinates (lat, lon) 44.2730, 11.6950 at 20 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 |
Casalfiumanese | BO | 7 | 3438 | 9158 |
Casola Valsenio | RA | 8 | 2617 | 11775 |
Brisighella | RA | 8 | 7639 | 19414 |
Borgo Tossignano | BO | 8 | 3288 | 22702 |
Imola | BO | 9 | 69797 | 92499 |
Castel Bolognese | RA | 10 | 9554 | 102053 |
Fontanelice | BO | 11 | 1943 | 103996 |
Dozza | BO | 11 | 6652 | 110648 |
Faenza | RA | 15 | 58541 | 169189 |
Modigliana | FC | 15 | 4560 | 173749 |
Solarolo | RA | 15 | 4488 | 178237 |
Castel San Pietro Terme | BO | 16 | 20811 | 199048 |
Castel del Rio | BO | 17 | 1246 | 200294 |
Bagnara di Romagna | RA | 17 | 2429 | 202723 |
Mordano | BO | 17 | 4760 | 207483 |
Castel Guelfo di Bologna | BO | 18 | 4455 | 211938 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2018-04-28 05:41:34 |
44.2733 | 11.6947 | 21 | 2019-04-24 14:49:47 |
Bollettino Sismico Italiano INGV | 65733091 |
Reviewed Rev100 |
ML 1.0 | 2018-04-28 05:41:34 |
44.2733 | 11.7017 | 21 | 2018-04-28 06:07:13 |
Sala Sismica INGV-Roma | 56191041 |
Field | Value |
---|---|
Time (UTC) | 2018-04-28 05:41:34 ± 0.42 |
Latitude | 44.2733 ± 0.0144 |
Longitude | 11.6947 ± 0.0389 |
Depth (km) | 21 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 65733091 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2960 |
Semi-minor axis of confidence ellipse (meter) | 1598 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 76 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2960.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 111 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.43 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.48114 |
Number of stations at which the event was observed | 16 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 65733091 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2019-02-20 13:17:30 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 56191041 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2018-04-28 06:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SGG.HHZ. | 2018-04-28T05:43:24.24 | 3.0 | undecidable | manual | Sg | 12.12 | 0 | |||
IV.LPEL.HHZ. | 2018-04-28T05:42:58.07 | 3.0 | undecidable | manual | Sn | 0.99 | 0 | |||
IV.LEOD.HNZ. | 2018-04-28T05:42:31.72 | 3.0 | undecidable | manual | Sg | 1.3 | 0 | |||
RD.PGF.BHZ. | 2018-04-28T05:42:25.16 | 3.0 | undecidable | manual | Pg | 6.84 | 0 | |||
IV.PP3.HNZ. | 2018-04-28T05:42:08.11 | 3.0 | undecidable | manual | Pg | 2.88 | 0 | |||
IV.FDMO.HHZ. | 2018-04-28T05:42:03.02 | 3.0 | undecidable | manual | P | -1.15 | 0 | |||
IV.T1219.EHZ. | 2018-04-28T05:42:03.36 | 3.0 | negative | manual | P | -0.06 | 0 | |||
IV.BLLA.EHZ. | 2018-04-28T05:41:56.31 | 3.0 | undecidable | manual | S | -1.53 | 0 | |||
IV.FOSV.EHZ. | 2018-04-28T05:41:56.83 | 3.0 | positive | manual | P | -2.51 | 0 | |||
IV.NDIM.HNZ. | 2018-04-28T05:41:54.61 | 3.0 | undecidable | manual | P | -0.45 | 0 | |||
IV.SFI.EHZ. | 2018-04-28T05:41:49.77 | 0.3 | undecidable | manual | S | 163 | 42.624 | 107 | 0.76 | 56 |
IV.BLLA.EHZ. | 2018-04-28T05:41:47.73 | 3.0 | negative | manual | P | -0.7 | 0 | |||
IV.ASQU.HHZ. | 2018-04-28T05:41:44.88 | 0.3 | undecidable | manual | P | 172 | 53.4021 | 103 | 0.28 | 65 |
IV.LMD.HHZ. | 2018-04-28T05:41:43.85 | 0.1 | undecidable | manual | S | 177 | 21.7671 | 126 | -0.12 | 97 |
IV.IMOL.HNN. | 2018-04-28T05:41:42.36 | 0.1 | undecidable | manual | S | 22 | 10.2786 | 149 | 0.48 | 91 |
IV.SFI.EHZ. | 2018-04-28T05:41:42.95 | 0.3 | undecidable | manual | P | 163 | 42.624 | 107 | -0.05 | 71 |
IV.BRIS.HHZ. | 2018-04-28T05:41:41.58 | 0.1 | undecidable | manual | S | 133 | 7.881 | 156 | 0 | 100 |
IV.MTRZ.HHZ. | 2018-04-28T05:41:40.32 | 0.3 | undecidable | manual | P | 282 | 21.867 | 126 | 0.22 | 71 |
IV.LMD.HHZ. | 2018-04-28T05:41:39.57 | 0.1 | undecidable | manual | P | 177 | 21.7671 | 126 | -0.51 | 89 |
IV.BRIS.HHZ. | 2018-04-28T05:41:38.36 | 0.1 | positive | manual | P | 133 | 7.881 | 156 | -0.35 | 94 |
IV.IMOL.HNN. | 2018-04-28T05:41:38.51 | 0.1 | undecidable | manual | P | 22 | 10.2786 | 149 | -0.37 | 92 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:1.1 | 0.00006890000000000001 | 1.7 | AML | other | m | 2018-04-28T05:41:44.96 |
IV.BRIS.HHN. | ML:1.2 | 0.0001273853 | 0.2624 | AML | other | m | 2018-04-28T05:41:42.41 |
IV.BRIS.HHE. | ML:1.3 | 0.000153262965 | 0.24 | AML | other | m | 2018-04-28T05:41:41.63 |
IV.LMD.HHE. | ML:0.9 | 0.000038972075 | 0.2208 | AML | other | m | 2018-04-28T05:41:45.37 |
IV.MTRZ.HHN. | ML:0.8 | 0.00003639366 | 0.2592 | AML | other | m | 2018-04-28T05:41:46.75 |
IV.SFI.EHN. | ML:0.9 | 0.000022939795 | 0.24 | AML | other | m | 2018-04-28T05:41:50.47 |
IV.SFI.EHE. | ML:0.7 | 0.000014122175 | 0.48 | AML | other | m | 2018-04-28T05:41:50.17 |
IV.ASQU.HHE. | ML:0.6 | 0.000011724065000000001 | 0.24 | AML | other | m | 2018-04-28T05:41:54.89 |
IV.ASQU.HHN. | ML:0.4 | 0.000007149849499999999 | 0.32 | AML | other | m | 2018-04-28T05:41:53.73 |