Earthquake with magnitude of ML 1.8 on date 24-12-2019 and time 07:10:08 (Italy) in region 4 km W Premilcuore (FC)

A magnitude ML 1.8 earthquake occured in region: 4 km W Premilcuore (FC), on

  • 24-12-2019 06:10:08 (UTC)
  • 24-12-2019 07:10:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.99, 11.73 at 8 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
Premilcuore FC 4 799 799
Portico e San Benedetto FC 6 756 1555
Tredozio FC 10 1212 2767
San Godenzo FI 11 1167 3934
Rocca San Casciano FC 12 1910 5844
Marradi FI 13 3139 8983
Galeata FC 15 2516 11499
Santa Sofia FC 15 4136 15635
Civitella di Romagna FC 17 3786 19421
Modigliana FC 19 4560 23981
Dovadola FC 19 1653 25634
Londa FI 19 1840 27474
Dicomano FI 20 5515 32989
Palazzuolo sul Senio FI 20 1154 34143

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Faenza (58541 inhabitants)
36 Km SW of Forlì (117913 inhabitants)
40 Km S of Imola (69797 inhabitants)
44 Km W of Cesena (96758 inhabitants)
45 Km NE of Firenze (382808 inhabitants)
51 Km NE of Scandicci (50609 inhabitants)
52 Km E of Prato (191150 inhabitants)
60 Km N of Arezzo (99543 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
64 Km SE of Bologna (386663 inhabitants)
65 Km E of Pistoia (90315 inhabitants)
67 Km W of Rimini (147750 inhabitants)
81 Km NE of Siena (53903 inhabitants)
94 Km S of Ferrara (133155 inhabitants)
95 Km W of Pesaro (94582 inhabitants)
97 Km SE of Modena (184973 inhabitants)
100 Km E of Lucca (89046 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.8 2019-12-24
06:10:08
43.99 11.73 8 2019-12-24
06:14:37
Sala Sismica INGV-Roma 74935061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-24 06:10:08 ± 0.19
Latitude 43.99 ± 0.00
Longitude 11.73 ± 0.01
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74935061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 74935061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-24 06:14:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2019-12-24T06:10:20.17 3.0 negative manual Pg 4.21 0
IV.BRIS.HHZ. 2019-12-24T06:10:18.57 0.6 undecidable manual S 7 0.2338 107 0.69 41
IV.RONT.HHZ. 2019-12-24T06:10:17.39 0.6 undecidable manual S 271 0.2122 109 0.29 46
IV.ASQU.HHZ. 2019-12-24T06:10:16.64 0.6 undecidable manual S 167 0.1996 110 0 49
IV.ATMI.HHZ. 2019-12-24T06:10:16.29 3.0 undecidable manual P -0.36 0
IV.VISG.HHZ. 2019-12-24T06:10:14.79 0.6 undecidable manual P 313 0.2887 104 -0.27 46
IV.RINC.HHZ. 2019-12-24T06:10:14.66 0.6 undecidable manual S 220 0.1367 118 0.24 48
IV.SEI.HHZ. 2019-12-24T06:10:14.38 0.3 positive manual P 283 0.2734 105 -0.34 68
IV.SFI.EHZ. 2019-12-24T06:10:13.88 0.6 undecidable manual S 136 0.1214 121 -0.03 50
IV.ASQU.HHZ. 2019-12-24T06:10:13.08 0.1 positive manual P 167 0.1996 110 -0.09 97
IV.BRIS.HHZ. 2019-12-24T06:10:13.98 0.1 positive manual P 7 0.2338 107 0.09 96
IV.RONT.HHZ. 2019-12-24T06:10:13.40 1.0 undecidable manual P 271 0.2122 109 -0.04 24
IV.LMD.HHZ. 2019-12-24T06:10:12.40 0.6 undecidable manual S 350 0.0872 130 -0.41 46
IV.RINC.HHZ. 2019-12-24T06:10:12.01 0.1 positive manual P 220 0.1367 118 0.12 97
IV.SFI.EHZ. 2019-12-24T06:10:11.59 0.1 positive manual P 136 0.1214 121 -0.01 100
IV.LMD.HHZ. 2019-12-24T06:10:10.71 1.0 undecidable manual P 350 0.0872 130 -0.25 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHN. ML:1.4 0.0002695 0.22 AML other m 2019-12-24T06:10:14.11
IV.SFI.EHE. ML:1.3 0.0002195 0.4 AML other m 2019-12-24T06:10:14.32
IV.RINC.HHE. ML:1.5 0.0002915 1.36 AML other m 2019-12-24T06:10:14.14
IV.RINC.HHN. ML:1.5 0.0003355 0.84 AML other m 2019-12-24T06:10:15.00
IV.ASQU.HHN. ML:1.7 0.0003485 0.24 AML other m 2019-12-24T06:10:17.04
IV.ASQU.HHE. ML:1.6 0.000271 0.26 AML other m 2019-12-24T06:10:18.04
IV.RONT.HHN. ML:2 0.0007275 0.38 AML other m 2019-12-24T06:10:18.32
IV.RONT.HHE. ML:2.1 0.000895 0.12 AML other m 2019-12-24T06:10:18.18
IV.BRIS.HHE. ML:1.9 0.000481 0.52 AML other m 2019-12-24T06:10:18.97
IV.BRIS.HHN. ML:1.9 0.0004865 0.58 AML other m 2019-12-24T06:10:19.77
IV.SEI.HHE. ML:1.7 0.000256 0.28 AML other m 2019-12-24T06:10:19.79
IV.SEI.HHN. ML:2 0.0004865 0.3 AML other m 2019-12-24T06:10:19.91
IV.ATMI.HHE. ML:2 0.00012525 1.18 AML other m 2019-12-24T06:10:20.91
IV.ATMI.HHN. ML:2 0.0001415 0.88 AML other m 2019-12-24T06:10:24.59
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download