Earthquake with magnitude of ML 0.9 on date 22-11-2018 and time 12:16:20 (Italy) in region 3 km W Premilcuore (FC)

A magnitude ML 0.9 earthquake occured in region: 3 km W Premilcuore (FC), on

  • 22-11-2018 11:16:20 (UTC)
  • 22-11-2018 12:16:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.98, 11.74 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 3 799 799
Portico e San Benedetto FC 6 756 1555
San Godenzo FI 11 1167 2722
Tredozio FC 11 1212 3934
Rocca San Casciano FC 13 1910 5844
Galeata FC 14 2516 8360
Santa Sofia FC 14 4136 12496
Marradi FI 14 3139 15635
Civitella di Romagna FC 17 3786 19421
Londa FI 19 1840 21261
Dicomano FI 20 5515 26776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Faenza (58541 inhabitants)
37 Km SW of Forlì (117913 inhabitants)
42 Km S of Imola (69797 inhabitants)
44 Km W of Cesena (96758 inhabitants)
45 Km NE of Firenze (382808 inhabitants)
51 Km E of Scandicci (50609 inhabitants)
52 Km E of Prato (191150 inhabitants)
58 Km N of Arezzo (99543 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
65 Km SE of Bologna (386663 inhabitants)
66 Km E of Pistoia (90315 inhabitants)
67 Km W of Rimini (147750 inhabitants)
80 Km NE of Siena (53903 inhabitants)
95 Km W of Pesaro (94582 inhabitants)
96 Km S of Ferrara (133155 inhabitants)
98 Km SE of Modena (184973 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 0.9 2018-11-22
11:16:20
43.98 11.74 8 2018-11-22
11:22:34
Sala Sismica INGV-Roma 63282251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-22 11:16:20 ± 0.1
Latitude 43.98 ± 0.00
Longitude 11.74 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63282251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 297
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.3921
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 63282251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-22 11:22:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2018-11-22T11:16:35.11 0.3 undecidable manual S 39 0.3921 50 0.05 70
IV.SEI.HHZ. 2018-11-22T11:16:31.79 0.3 undecidable manual S 285 0.2806 105 0.27 69
IV.BRIS.HNZ. 2018-11-22T11:16:30.71 0.3 undecidable manual S 5 0.2446 107 0.5 66
IV.BRSN.EHZ. 2018-11-22T11:16:28.36 0.6 undecidable manual P 39 0.3921 50 -0.48 43
IV.ASQU.HHZ. 2018-11-22T11:16:28.17 0.3 undecidable manual S 168 0.188 111 0.05 73
IV.SEI.HHZ. 2018-11-22T11:16:26.57 0.1 undecidable manual P 285 0.2806 105 -0.23 93
IV.BRIS.HNZ. 2018-11-22T11:16:26.24 0.1 undecidable manual P 5 0.2446 107 0.19 94
IV.RUFI.EHZ. 2018-11-22T11:16:25.48 0.1 undecidable manual P 229 0.2158 109 0.05 97
IV.SFI.EHZ. 2018-11-22T11:16:25.50 0.3 undecidable manual S 133 0.1106 124 0.03 75
IV.ASQU.HHZ. 2018-11-22T11:16:24.88 0.1 undecidable manual P 168 0.188 111 0.04 98
IV.LMD.HHZ. 2018-11-22T11:16:24.69 0.3 undecidable manual S 348 0.0989 127 -0.42 69
IV.SFI.EHZ. 2018-11-22T11:16:23.29 0.1 undecidable manual P 133 0.1106 124 -0.02 100
IV.LMD.HHZ. 2018-11-22T11:16:22.92 0.1 undecidable manual P 348 0.0989 127 -0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:0.9 9.7865635E-5 0.1216 AML other m 2018-11-22T11:16:24.00
IV.LMD.HHE. ML:1 0.0001428825 0.1024 AML other m 2018-11-22T11:16:25.06
IV.SFI.HNE. ML:1 0.00013402148 0.5632 AML other m 2018-11-22T11:16:27.37
IV.SFI.EHE. ML:0.5 3.8120645E-5 0.0832 AML other m 2018-11-22T11:16:25.62
IV.SFI.HNN. ML:1 0.00012178671 1.3312 AML other m 2018-11-22T11:16:25.71
IV.SFI.EHN. ML:0.6 4.6259531E-5 0.1024 AML other m 2018-11-22T11:16:25.58
IV.ASQU.HHE. ML:0.7 4.065066E-5 0.9792 AML other m 2018-11-22T11:16:28.99
IV.ASQU.HHN. ML:0.7 3.961857E-5 2.7584 AML other m 2018-11-22T11:16:30.38
IV.SEI.HHN. ML:1.1 6.173522E-5 0.1984 AML other m 2018-11-22T11:16:32.64
IV.SEI.HHE. ML:1 4.2524155E-5 0.32 AML other m 2018-11-22T11:16:32.44
IV.BRSN.HNE. ML:1.8 0.000193892175 0.5632 AML other m 2018-11-22T11:16:35.34
IV.BRSN.EHE. ML:1.8 0.00017782785 1.664 AML other m 2018-11-22T11:16:35.89
IV.BRSN.HNN. ML:1.7 0.0001640984 2.656 AML other m 2018-11-22T11:16:35.09
IV.BRSN.EHN. ML:1.7 0.000158485295 0.3584 AML other m 2018-11-22T11:16:35.41
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