Earthquake with magnitude of ML 1.4 on date 23-10-2019 and time 10:26:47 (Italy) in region 4 km NE Premilcuore (FC)

A magnitude ML 1.4 earthquake occured in region: 4 km NE Premilcuore (FC), on

  • 23-10-2019 08:26:47 (UTC)
  • 23-10-2019 10:26:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44, 11.82 at 28 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 5 756 1555
Galeata FC 7 2516 4071
Rocca San Casciano FC 8 1910 5981
Santa Sofia FC 9 4136 10117
Civitella di Romagna FC 10 3786 13903
Tredozio FC 11 1212 15115
Dovadola FC 15 1653 16768
San Godenzo FI 18 1167 17935
Predappio FC 18 6346 24281
Modigliana FC 18 4560 28841
Marradi FI 19 3139 31980
Bagno di Romagna FC 20 6026 38006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Forlì (117913 inhabitants)
33 Km S of Faenza (58541 inhabitants)
37 Km W of Cesena (96758 inhabitants)
41 Km S of Imola (69797 inhabitants)
52 Km E of Firenze (382808 inhabitants)
56 Km SW of Ravenna (159116 inhabitants)
57 Km E of Scandicci (50609 inhabitants)
59 Km N of Arezzo (99543 inhabitants)
59 Km E of Prato (191150 inhabitants)
60 Km W of Rimini (147750 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
85 Km NE of Siena (53903 inhabitants)
88 Km W of Pesaro (94582 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
98 Km W of Fano (60888 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 1.4 2019-10-23
08:26:47
44 11.82 28 2019-10-23
08:33:40
Sala Sismica INGV-Roma 73406111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-23 08:26:47 ± 0.28
Latitude 44.00 ± 0.01
Longitude 11.82 ± 0.02
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73406111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1215
Semi-minor axis of confidence ellipse (meter) 903
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 73406111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-23 08:33:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2019-10-23T08:28:39.94 3.0 undecidable manual Sg 4.82 0
IV.PTRJ.HHZ. 2019-10-23T08:28:32.10 3.0 undecidable manual Sg 6.54 0
IV.VBKN.HHZ. 2019-10-23T08:28:30.19 3.0 undecidable manual Sn -5.37 0
IT.VNF1.HGZ. 2019-10-23T08:28:20.45 3.0 undecidable manual Sg 2.12 0
IV.IST3.HHZ. 2019-10-23T08:28:12.23 3.0 positive manual Pn -6.06 0
IV.EUCT.HNZ. 2019-10-23T08:28:07.12 3.0 undecidable manual Sg 7.62 0
GU.BLANC.HHZ. 2019-10-23T08:27:56.11 3.0 undecidable manual Pn 3.82 0
IV.MODR.HHZ. 2019-10-23T08:27:42.03 3.0 undecidable manual Pg -1.07 0
IV.VENL.HNZ. 2019-10-23T08:27:18.27 3.0 undecidable manual P 0.4 0
IV.OPPE.HHZ. 2019-10-23T08:27:15.32 3.0 negative manual P -1.61 0
IV.CRE.HHZ. 2019-10-23T08:27:03.16 0.6 undecidable manual S 166 0.3885 117 0.33 45
IV.RUFI.EHZ. 2019-10-23T08:27:00.30 0.6 undecidable manual S 235 0.2725 128 0.37 46
IV.NARO.HHZ. 2019-10-23T08:26:59.36 3.0 undecidable manual P -6.23 0
IV.BRIS.HHZ. 2019-10-23T08:26:59.86 0.6 undecidable manual S 351 0.232 133 0.85 39
IV.ASQU.HHZ. 2019-10-23T08:26:58.51 0.6 undecidable manual S 186 0.1996 138 0.16 49
IV.LMD.HHZ. 2019-10-23T08:26:56.70 0.3 undecidable manual S 316 0.1142 153 -0.2 74
IV.SFI.EHE. 2019-10-23T08:26:56.57 0.6 undecidable manual S 167 0.0935 158 -0.07 51
IV.CRE.HHZ. 2019-10-23T08:26:56.40 0.3 undecidable manual P 166 0.3885 117 -0.04 72
IV.BRIS.HHZ. 2019-10-23T08:26:54.25 0.1 undecidable manual P 351 0.232 133 0.02 100
IV.RUFI.EHZ. 2019-10-23T08:26:54.80 0.3 undecidable manual P 235 0.2725 128 0.03 74
IV.ASQU.HHZ. 2019-10-23T08:26:53.77 0.1 undecidable manual P 186 0.1996 138 -0.08 99
IV.LMD.HHZ. 2019-10-23T08:26:52.76 0.1 undecidable manual P 316 0.1142 153 -0.25 97
IV.SFI.EHE. 2019-10-23T08:26:52.62 0.1 undecidable manual P 167 0.0935 158 -0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:1.3 0.00010665 0.84 AML other m 2019-10-23T08:26:57.98
IV.LMD.HHE. ML:1.3 0.0001007 0.5 AML other m 2019-10-23T08:26:57.37
IV.ASQU.HHN. ML:1.6 0.0001775 0.22 AML other m 2019-10-23T08:26:58.71
IV.ASQU.HHE. ML:1.4 0.00011115 0.34 AML other m 2019-10-23T08:26:58.90
IV.VBKN.HHN. ML:4.7 0.002995 0.06 AML other m 2019-10-23T08:28:53.09
IV.VBKN.HHE. ML:4.7 0.002835 0.32 AML other m 2019-10-23T08:29:01.11
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