Earthquake with magnitude of ML 0.8 on date 12-08-2014 and time 22:51:42 (Italy) in region 2 km W Premilcuore (FC)

A magnitude ML 0.8 earthquake occured in region: 2 km W Premilcuore (FC), on

  • 12-08-2014 20:51:42 (UTC)
  • 12-08-2014 22:51:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.97, 11.75 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 2 799 799
Portico e San Benedetto FC 7 756 1555
San Godenzo FI 12 1167 2722
Tredozio FC 12 1212 3934
Rocca San Casciano FC 12 1910 5844
Santa Sofia FC 13 4136 9980
Galeata FC 13 2516 12496
Civitella di Romagna FC 15 3786 16282
Marradi FI 16 3139 19421
Londa FI 19 1840 21261
Dovadola FC 20 1653 22914

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Forlì (117913 inhabitants)
37 Km S of Faenza (58541 inhabitants)
43 Km S of Imola (69797 inhabitants)
43 Km W of Cesena (96758 inhabitants)
46 Km E of Firenze (382808 inhabitants)
52 Km E of Scandicci (50609 inhabitants)
53 Km E of Prato (191150 inhabitants)
57 Km N of Arezzo (99543 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
66 Km W of Rimini (147750 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
67 Km E of Pistoia (90315 inhabitants)
80 Km NE of Siena (53903 inhabitants)
93 Km W of Pesaro (94582 inhabitants)
97 Km S of Ferrara (133155 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 1000 ML 0.8 2014-08-12
20:51:42
43.97 11.75 10 2015-09-21
09:39:02
Bollettino Sismico Italiano INGV 19396631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-08-12 20:51:42 ± 0.16
Latitude 43.97 ± 0.01
Longitude 11.75 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 19396631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 861
Semi-minor axis of confidence ellipse (meter) 551
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) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.09443
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 19396631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-28 15:13:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SEI.HHZ. 2014-08-12T20:51:54.90 0.6 undecidable manual S 287 0.2959 50 0.72 40
IV.RUFI.EHE. 2014-08-12T20:51:51.81 0.6 undecidable manual S 233 0.2203 112 0 49
IV.ASQU.HHZ. 2014-08-12T20:51:50.40 0.3 undecidable manual S 172 0.1763 117 0.14 72
IV.LMD.HHZ. 2014-08-12T20:51:48.30 0.3 undecidable manual S 343 0.1115 128 0.14 73
IV.SEI.HHZ. 2014-08-12T20:51:48.92 0.3 undecidable manual P 287 0.2959 50 -0.39 67
IV.RUFI.EHE. 2014-08-12T20:51:47.85 0.1 undecidable manual P 233 0.2203 112 -0.1 96
IV.SFI.EHZ. 2014-08-12T20:51:47.80 0.3 undecidable manual S 134 0.0944 133 0.14 73
IV.ASQU.HHZ. 2014-08-12T20:51:46.93 0.1 undecidable manual P 172 0.1763 117 -0.12 96
IV.LMD.HHZ. 2014-08-12T20:51:45.72 0.1 negative manual P 343 0.1115 128 -0.12 98
IV.SFI.EHZ. 2014-08-12T20:51:45.56 0.1 negative manual P 134 0.0944 133 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:0 2.99E-5 0.24 AML other m 2014-08-12T20:51:50.54
IV.ASQU.HHN. ML:0 2.845E-5 0.3 AML other m 2014-08-12T20:51:50.83
IV.LMD.HHE. ML:0.7 0.000126 0.16 AML other m 2014-08-12T20:51:48.49
IV.LMD.HHN. ML:0 6.275E-5 0.14 AML other m 2014-08-12T20:51:48.59
IV.SEI.HHE. ML:0 1.985E-5 0.46 AML other m 2014-08-12T20:51:57.43
IV.SEI.HHN. ML:0 3.15E-5 1.34 AML other m 2014-08-12T20:51:57.76
IV.SFI.EHE. ML:1 0.000115 0.18 AML other m 2014-08-12T20:51:49.81
IV.SFI.EHN. ML:0 7.295E-5 0.4 AML other m 2014-08-12T20:51:50.06
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