Earthquake with magnitude of ML 2.1 on date 15-03-2011 and time 09:26:54 (Italy) in region 4 km E Monterenzio (BO)

A magnitude ML 2.1 earthquake occured in region: 4 km E Monterenzio (BO), on

  • 15-03-2011 08:26:54 (UTC)
  • 15-03-2011 09:26:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3390, 11.4490 at 28 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
Monterenzio BO 4 6035 6035
Pianoro BO 10 17460 23495
Ozzano dell'Emilia BO 12 13596 37091
Fontanelice BO 13 1943 39034
Loiano BO 13 4294 43328
Borgo Tossignano BO 13 3288 46616
Castel San Pietro Terme BO 13 20811 67427
Casalfiumanese BO 14 3438 70865
Dozza BO 15 6652 77517
Castel del Rio BO 15 1246 78763
San Lazzaro di Savena BO 15 32065 110828
Monzuno BO 16 6328 117156
Monghidoro BO 17 3749 120905
Sasso Marconi BO 17 14735 135640
Casola Valsenio RA 19 2617 138257
Castenaso BO 19 14925 153182
Marzabotto BO 19 6779 159961
Bologna BO 19 386663 546624

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SE of Bologna (386663 inhabitants)
21 Km W of Imola (69797 inhabitants)
35 Km W of Faenza (58541 inhabitants)
49 Km W of Forlì (117913 inhabitants)
54 Km SE of Modena (184973 inhabitants)
57 Km S of Ferrara (133155 inhabitants)
58 Km NE of Prato (191150 inhabitants)
60 Km W of Ravenna (159116 inhabitants)
62 Km NE of Pistoia (90315 inhabitants)
65 Km N of Firenze (382808 inhabitants)
67 Km SE of Carpi (70699 inhabitants)
67 Km W of Cesena (96758 inhabitants)
68 Km NE of Scandicci (50609 inhabitants)
76 Km SE of Reggio nell'Emilia (171345 inhabitants)
86 Km SW of Rovigo (51867 inhabitants)
93 Km NE of Lucca (89046 inhabitants)
94 Km W of Rimini (147750 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
ML 2.1 2011-03-15
08:26:54
44.339 11.449 28 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1182119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-15 08:26:54 ± 0.39
Latitude 44.3390 ± 0.0108
Longitude 11.4490 ± 0.0226
Depth (km) 28 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1182119

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1656
Semi-minor axis of confidence ellipse (meter) 849
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 2163.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.03422
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 1182119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:04:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2011-03-15T08:27:27.98 0.6 undecidable manual Sg 9 114.7962 -0.007 46
IV.PIEI.HHE. 2011-03-15T08:27:19.10 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHN. 2011-03-15T08:27:13.72 0.6 undecidable manual Sg 147 57.5979 0.554 45
IV.TEOL.HHZ. 2011-03-15T08:27:13.49 0.3 undecidable manual Pg 9 114.7962 -0.344 64
IV.CRE.HHN. 2011-03-15T08:27:10.47 0.3 undecidable manual Pg 153 89.3439 0.49 65
IV.FNVD.HHZ. 2011-03-15T08:27:07.74 0.3 undecidable manual Sg 234 32.1456 0.628 69
IV.IMOL.EHN. 2011-03-15T08:27:05.64 0.6 undecidable manual Sg 84 23.3544 0.288 50
IV.SFI.EHN. 2011-03-15T08:27:04.87 0.3 undecidable manual Pg 147 57.5979 -0.409 70
IV.MTRZ.HHZ. 2011-03-15T08:27:03.20 0.6 undecidable manual Sg 214 3.4965 0.253 53
IV.CMPO.HHZ. 2011-03-15T08:27:03.31 0.3 undecidable manual Pg 46 38.9277 0.645 67
IV.FIU.EHN. 2011-03-15T08:27:02.78 0.6 undecidable manual Pg 6 33.6441 0.808 42
IV.FNVD.HHZ. 2011-03-15T08:27:01.47 0.1 undecidable manual Pg 234 32.1456 -0.311 100
IV.IMOL.EHN. 2011-03-15T08:27:00.52 0.3 undecidable manual Pg 84 23.3544 -0.246 78
IV.BRIS.HHZ. 2011-03-15T08:27:00.80 0.3 undecidable manual Pg 117 28.2495 -0.509 73
IV.MTRZ.HHZ. 2011-03-15T08:26:58.74 0.1 undecidable manual Pg 214 3.4965 -0.636 97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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