Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-07-2010 and time 23:35:18 (UTC) in region 5 km E Monterenzio (BO)

A magnitude ML 2.1 earthquake occured in region: 5 km E Monterenzio (BO), on

  • 06-07-2010 23:35:18 (UTC)
  • 07-07-2010 01:35:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3310, 11.4640 at 31 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monterenzio BO 5 6035 6035
Fontanelice BO 11 1943 7978
Pianoro BO 11 17460 25438
Borgo Tossignano BO 12 3288 28726
Castel San Pietro Terme BO 13 20811 49537
Casalfiumanese BO 13 3438 52975
Ozzano dell'Emilia BO 13 13596 66571
Loiano BO 13 4294 70865
Castel del Rio BO 13 1246 72111
Dozza BO 14 6652 78763
San Lazzaro di Savena BO 16 32065 110828
Monzuno BO 16 6328 117156
Monghidoro BO 17 3749 120905
Casola Valsenio RA 17 2617 123522
Sasso Marconi BO 19 14735 138257
Castenaso BO 20 14925 153182

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Imola (69797 inhabitants)
21 Km SE of Bologna (386663 inhabitants)
34 Km W of Faenza (58541 inhabitants)
48 Km W of Forlì (117913 inhabitants)
55 Km SE of Modena (184973 inhabitants)
58 Km S of Ferrara (133155 inhabitants)
58 Km NE of Prato (191150 inhabitants)
59 Km W of Ravenna (159116 inhabitants)
62 Km NE of Pistoia (90315 inhabitants)
65 Km N of Firenze (382808 inhabitants)
66 Km W of Cesena (96758 inhabitants)
68 Km NE of Scandicci (50609 inhabitants)
68 Km SE of Carpi (70699 inhabitants)
78 Km SE of Reggio nell'Emilia (171345 inhabitants)
86 Km SW of Rovigo (51867 inhabitants)
93 Km W of Rimini (147750 inhabitants)
94 Km NE of Lucca (89046 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 2.2
ML 2.1 		2010-07-06
23:35:18		 44.331 11.464 31 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1078669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-07-06 23:35:18 ± 0.27
Latitude 44.3310 ± 0.0207
Longitude 11.4640 ± 0.0478
Depth (km) 31 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1078669

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3855
Semi-minor axis of confidence ellipse (meter) 1970
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 4441.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.04052
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1078669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:49:14

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1078669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:49:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2010-07-06T23:35:37.30 0.3 undecidable manual Pg 8 115.4955 0.097 66
IV.SFI.EHN. 2010-07-06T23:35:37.79 10.0 undecidable manual Pg 0 0 0
IV.PII.SHZ. 2010-07-06T23:35:35.82 0.3 undecidable manual Pg 228 100.9212 0.454 64
IV.SCHR.EHZ. 2010-07-06T23:35:34.47 10.0 undecidable manual Pg 0 0 0
IV.VMG.SHZ. 2010-07-06T23:35:33.62 0.6 undecidable manual Sg 171 41.5251 0.397 49
IV.SEI.SHZ. 2010-07-06T23:35:31.64 0.3 undecidable manual Sg 195 31.8459 0.5 72
IV.FNVD.HHZ. 2010-07-06T23:35:31.23 0.6 undecidable manual Sg 236 32.5452 -0.064 52
IV.MTRZ.HHZ. 2010-07-06T23:35:27.58 0.3 undecidable manual Sg 236 3.6963 0.219 79
IV.VMG.SHZ. 2010-07-06T23:35:26.47 0.3 undecidable manual Pg 171 41.5251 -0.338 72
IV.FIU.EHN. 2010-07-06T23:35:26.39 0.3 undecidable manual Pg 4 34.3434 0.486 70
IV.SEI.SHZ. 2010-07-06T23:35:25.35 0.3 undecidable manual Pg 195 31.8459 -0.255 75
IV.FNVD.HHZ. 2010-07-06T23:35:25.45 0.1 undecidable manual Pg 236 32.5452 -0.24 100
IV.MTRZ.HHZ. 2010-07-06T23:35:22.75 0.1 undecidable manual Pg 236 3.6963 -0.674 94
IV.CDCA.EHE. 2010-07-06T23:35:05.98 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download