Earthquake with magnitude of ML 1.4 on date 15-11-2018 and time 04:26:22 (Italy) in region 5 km S Marradi (FI)

A magnitude ML 1.4 earthquake occured in region: 5 km S Marradi (FI), on

  • 15-11-2018 03:26:22 (UTC)
  • 15-11-2018 04:26:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.03, 11.62 at 9 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
Marradi FI 5 3139 3139
Palazzuolo sul Senio FI 11 1154 4293
Tredozio FC 11 1212 5505
San Godenzo FI 12 1167 6672
Portico e San Benedetto FC 13 756 7428
Premilcuore FC 14 799 8227
Vicchio FI 16 8044 16271
Dicomano FI 17 5515 21786
Rocca San Casciano FC 18 1910 23696
Londa FI 20 1840 25536
Modigliana FC 20 4560 30096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Faenza (58541 inhabitants)
37 Km S of Imola (69797 inhabitants)
40 Km SW of Forlì (117913 inhabitants)
41 Km NE of Firenze (382808 inhabitants)
45 Km E of Prato (191150 inhabitants)
46 Km NE of Scandicci (50609 inhabitants)
51 Km W of Cesena (96758 inhabitants)
56 Km SE of Bologna (386663 inhabitants)
57 Km E of Pistoia (90315 inhabitants)
63 Km SW of Ravenna (159116 inhabitants)
66 Km NW of Arezzo (99543 inhabitants)
76 Km W of Rimini (147750 inhabitants)
83 Km N of Siena (53903 inhabitants)
88 Km SE of Modena (184973 inhabitants)
90 Km S of Ferrara (133155 inhabitants)
92 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 1.4 2018-11-15
03:26:22
44.03 11.62 9 2018-11-15
03:39:06
Sala Sismica INGV-Roma 63074331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-15 03:26:22 ± 0.07
Latitude 44.03 ± 0.00
Longitude 11.62 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63074331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 198
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31746
Number of stations at which the event was observed 7
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 8
Type of magnitude ML
Reference to an origin 63074331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-15 03:39:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOCL.EHZ. 2018-11-15T03:26:35.09 0.1 undecidable manual S 265 0.3175 50 0.11 98
IV.BRIS.HHZ. 2018-11-15T03:26:31.57 0.3 undecidable manual S 29 0.2185 110 0.06 74
IV.SFI.EHZ. 2018-11-15T03:26:31.11 0.1 undecidable manual S 128 0.2068 111 0.03 100
IV.RUFI.EHZ. 2018-11-15T03:26:31.32 0.1 undecidable manual S 202 0.2104 110 0.12 97
IV.SEI.HHZ. 2018-11-15T03:26:30.34 0.1 undecidable manual S 277 0.1898 112 -0.13 100
IV.MTRZ.HHE. 2018-11-15T03:26:30.06 0.1 undecidable manual P 333 0.3139 50 0.39 92
IV.APEC.HHZ. 2018-11-15T03:26:29.75 3.0 negative manual P 0.15 0
IV.MOCL.EHZ. 2018-11-15T03:26:29.55 0.1 undecidable manual P 265 0.3175 50 -0.19 93
IV.SFI.EHZ. 2018-11-15T03:26:27.34 0.1 undecidable manual P 128 0.2068 111 -0.14 97
IV.RUFI.EHZ. 2018-11-15T03:26:27.64 0.3 undecidable manual P 202 0.2104 110 0.08 74
IV.BRIS.HHZ. 2018-11-15T03:26:27.63 0.1 negative manual P 29 0.2185 110 -0.11 98
IV.SEI.HHZ. 2018-11-15T03:26:27.03 0.1 positive manual P 277 0.1898 112 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:1.5 0.00022250825 0.36 AML other m 2018-11-15T03:26:33.25
IV.SEI.HHN. ML:1.7 0.0003397884 0.28 AML other m 2018-11-15T03:26:33.60
IV.SFI.EHN. ML:1 6.9176595E-5 0.1408 AML other m 2018-11-15T03:26:31.35
IV.SFI.EHE. ML:1.1 7.727199E-5 0.08 AML other m 2018-11-15T03:26:31.81
IV.SFI.HNE. ML:1.3 0.00014622505 0.72 AML other m 2018-11-15T03:26:31.81
IV.BRIS.HHE. ML:1.4 0.0001389479 0.48 AML other m 2018-11-15T03:26:35.46
IV.BRIS.HNE. ML:1.4 0.0001712184 0.3504 AML other m 2018-11-15T03:26:34.58
IV.BRIS.HHN. ML:1.4 0.0001633824 0.4 AML other m 2018-11-15T03:26:35.88
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