Earthquake with magnitude of ML 0.7 on date 08-09-2006 and time 15:53:02 (Italy) in region 5 km E Palazzuolo sul Senio (FI)

A magnitude ML 0.7 earthquake occured in region: 5 km E Palazzuolo sul Senio (FI), on

  • 08-09-2006 13:53:02 (UTC)
  • 08-09-2006 15:53:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.13, 11.6 at 6 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
Palazzuolo sul Senio FI 5 1154 1154
Marradi FI 6 3139 4293
Casola Valsenio RA 11 2617 6910
Castel del Rio BO 12 1246 8156
Tredozio FC 13 1212 9368
Fontanelice BO 15 1943 11311
Modigliana FC 16 4560 15871
Borgo Tossignano BO 17 3288 19159
Brisighella RA 17 7639 26798
Firenzuola FI 18 4726 31524
Portico e San Benedetto FC 19 756 32280
Casalfiumanese BO 19 3438 35718
Riolo Terme RA 19 5720 41438

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Imola (69797 inhabitants)
29 Km SW of Faenza (58541 inhabitants)
37 Km W of Forlì (117913 inhabitants)
46 Km SE of Bologna (386663 inhabitants)
49 Km NE of Firenze (382808 inhabitants)
49 Km NE of Prato (191150 inhabitants)
51 Km W of Cesena (96758 inhabitants)
53 Km NE of Scandicci (50609 inhabitants)
58 Km SW of Ravenna (159116 inhabitants)
59 Km E of Pistoia (90315 inhabitants)
77 Km NW of Arezzo (99543 inhabitants)
78 Km W of Rimini (147750 inhabitants)
79 Km SE of Modena (184973 inhabitants)
79 Km S of Ferrara (133155 inhabitants)
92 Km SE of Carpi (70699 inhabitants)
93 Km N of Siena (53903 inhabitants)
93 Km E of Lucca (89046 inhabitants)
100 Km SE of Reggio nell'Emilia (171345 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.

Earthquakes of the last 90 days

Earthquakes since 1985

Significant earthquakes since 1000 AD until 2006

Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

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 Md 1.7
ML 0.7
2006-09-08
13:53:02
44.13 11.6 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 590979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-09-08 13:53:02 ± 0.49
Latitude 44.13 ± 0.02
Longitude 11.60 ± 0.02
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 590979

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2656
Semi-minor axis of confidence ellipse (meter) 576
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 2745.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 256
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.17357
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0
Num. used stations
Type of magnitude ML
Reference to an origin 590979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:18:25

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 590979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:18:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SFI.EHZ. 2006-09-08T13:53:14.67 0.3 undecidable manual Sg 142 0.2869 0.463 33
IV.VMG.SHZ. 2006-09-08T13:53:09.82 0.1 undecidable manual Sg 194 0.1736 -0.134 49
IV.SFI.EHZ. 2006-09-08T13:53:09.28 0.1 undecidable manual Pg 142 0.2869 -0.189 94
IV.SEI.SHZ. 2006-09-08T13:53:07.45 0.1 undecidable manual Pg 246 0.1898 0.09 98
IV.VMG.SHZ. 2006-09-08T13:53:07.02 0.1 undecidable manual Pg 194 0.1736 0.006 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VMG.SHZ. Md:1.6 16 END duration s
IV.SEI.SHZ. Md:1.5 13.8 END duration s
IV.SFI.EHN. ML:0.7 2.5E-5 0.72 AML other m 2006-09-08T13:53:09.28
IV.SFI.EHE. ML:0.7 2.5E-5 1.96 AML other m 2006-09-08T13:53:09.28
IV.SFI.EHZ. Md:1.9 22.2 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download