Earthquake with magnitude of ML 1.1 on date 26-01-2024 and time 21:56:31 (UTC) in region 7 km SW Castel del Rio (BO)

A magnitude ML 1.1 earthquake occured in region: 7 km SW Castel del Rio (BO), on

  • 26-01-2024 21:56:31 (UTC)
  • 26-01-2024 22:56:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1720, 11.4440 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel del Rio BO 7 1246 1246
Firenzuola FI 8 4726 5972
Palazzuolo sul Senio FI 11 1154 7126
Monghidoro BO 11 3749 10875
Fontanelice BO 13 1943 12818
Loiano BO 15 4294 17112
Casola Valsenio RA 16 2617 19729
Borgo Tossignano BO 17 3288 23017
Marradi FI 17 3139 26156
Monterenzio BO 17 6035 32191
San Benedetto Val di Sambro BO 17 4315 36506
Monzuno BO 18 6328 42834
Casalfiumanese BO 20 3438 46272

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Imola (69797 inhabitants)
37 Km S of Bologna (386663 inhabitants)
37 Km W of Faenza (58541 inhabitants)
43 Km NE of Prato (191150 inhabitants)
47 Km NE of Firenze (382808 inhabitants)
48 Km W of Forlì (117913 inhabitants)
50 Km NE of Pistoia (90315 inhabitants)
50 Km NE of Scandicci (50609 inhabitants)
64 Km W of Cesena (96758 inhabitants)
66 Km W of Ravenna (159116 inhabitants)
67 Km SE of Modena (184973 inhabitants)
75 Km S of Ferrara (133155 inhabitants)
81 Km SE of Carpi (70699 inhabitants)
84 Km E of Lucca (89046 inhabitants)
86 Km NW of Arezzo (99543 inhabitants)
87 Km SE of Reggio nell'Emilia (171345 inhabitants)
91 Km W of Rimini (147750 inhabitants)
95 Km N of Siena (53903 inhabitants)
98 Km NE of Pisa (89158 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2024-01-26
21:56:31
44.172 11.4438 10 2024-01-26
22:14:00
Sala Sismica INGV-Roma 124877941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-26 21:56:31
Latitude 44.1720
Longitude 11.4438
Depth (km) 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124877941

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.40559
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 124877941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-26 22:14:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PSL.EHZ. 2024-01-26T21:56:46.12 0.6 undecidable manual S 247 45.0216 -0.24 0.68
IV.RINC.EHZ. 2024-01-26T21:56:43.33 0.6 undecidable manual S 157 34.2435 -0.08 0.68
IV.BOSL.HHZ. 2024-01-26T21:56:41.48 0.6 undecidable manual S 192 27.2505 -0.02 0.68
IV.LMD.HHZ. 2024-01-26T21:56:40.29 0.6 undecidable manual S 116 23.5542 0.03 0.68
IV.VMGN.HHZ. 2024-01-26T21:56:40.84 0.6 undecidable manual S 163 25.1526 0.05 0.68
IV.PSL.EHZ. 2024-01-26T21:56:39.64 0.1 undecidable manual P 247 45.0216 -0.07 1.36
IV.RINC.EHZ. 2024-01-26T21:56:38.07 0.1 undecidable manual P 157 34.2435 0.02 1.36
IV.BOSL.HHZ. 2024-01-26T21:56:37.01 0.1 undecidable manual P 192 27.2505 0.03 1.36
IV.SEI.HHZ. 2024-01-26T21:56:37.69 0.3 undecidable manual S 208 14.7741 0.23 1.02
IV.LMD.HHZ. 2024-01-26T21:56:36.02 1.0 undecidable manual P 116 23.5542 -0.26 0.34
IV.VMGN.HHZ. 2024-01-26T21:56:36.54 0.1 undecidable manual P 163 25.1526 -0.04 1.36
IV.MTRZ.HHZ. 2024-01-26T21:56:35.17 0.1 undecidable manual P 355 15.6732 0.29 1.36
IV.VISG.HHZ. 2024-01-26T21:56:34.23 0.6 undecidable manual S 339 1.998 -0.49 0.68
IV.SEI.HHZ. 2024-01-26T21:56:34.82 0.1 undecidable manual P 208 14.7741 0.11 1.36
IV.VISG.HHZ. 2024-01-26T21:56:32.94 0.1 undecidable manual P 339 1.998 -0.23 1.36
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:1.6 0.0003915 0.36 AML other m 2024-01-26T21:56:37.93
IV.SEI.HHE. ML:1.4 0.0002245 0.36 AML other m 2024-01-26T21:56:39.17
IV.MTRZ.HHN. ML:1.5 0.000312 0.34 AML other m 2024-01-26T21:56:40.42
IV.MTRZ.HHE. ML:1.6 0.000347 1.58 AML other m 2024-01-26T21:56:40.50
IV.LMD.HHN. ML:0.8 0.00003555 0.16 AML other m 2024-01-26T21:56:40.92
IV.LMD.HHE. ML:0.8 0.00003535 0.4 AML other m 2024-01-26T21:56:43.44
IV.VMGN.HHN. ML:0.5 0.000020050000000000003 0.72 AML other m 2024-01-26T21:56:42.81
IV.VMGN.HHE. ML:0.5 0.00001845 1.2 AML other m 2024-01-26T21:56:40.97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download