Earthquake with magnitude of ML 3.1 on date 04-05-2010 and time 14:26:50 (Italy) in region 5 km SE Castel del Rio (BO)

A magnitude ML 3.1 earthquake occured in region: 5 km SE Castel del Rio (BO), on

  • 04-05-2010 12:26:50 (UTC)
  • 04-05-2010 14:26:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1800, 11.5390 at 30 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
Castel del Rio BO 5 1246 1246
Palazzuolo sul Senio FI 8 1154 2400
Casola Valsenio RA 8 2617 5017
Fontanelice BO 9 1943 6960
Borgo Tossignano BO 12 3288 10248
Marradi FI 13 3139 13387
Firenzuola FI 14 4726 18113
Casalfiumanese BO 15 3438 21551
Monghidoro BO 18 3749 25300
Riolo Terme RA 18 5720 31020
Brisighella RA 19 7639 38659
Monterenzio BO 19 6035 44694
Tredozio FC 20 1212 45906

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Imola (69797 inhabitants)
30 Km W of Faenza (58541 inhabitants)
38 Km SE of Bologna (386663 inhabitants)
40 Km W of Forlì (117913 inhabitants)
48 Km NE of Prato (191150 inhabitants)
51 Km NE of Firenze (382808 inhabitants)
55 Km NE of Scandicci (50609 inhabitants)
56 Km W of Cesena (96758 inhabitants)
57 Km E of Pistoia (90315 inhabitants)
59 Km W of Ravenna (159116 inhabitants)
71 Km SE of Modena (184973 inhabitants)
73 Km S of Ferrara (133155 inhabitants)
83 Km W of Rimini (147750 inhabitants)
84 Km NW of Arezzo (99543 inhabitants)
85 Km SE of Carpi (70699 inhabitants)
91 Km E of Lucca (89046 inhabitants)
92 Km SE of Reggio nell'Emilia (171345 inhabitants)
97 Km N of Siena (53903 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
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

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.1 2010-05-04
12:26:50
44.18 11.539 30 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1046519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-05-04 12:26:50 ± 0.13
Latitude 44.1800 ± 0.0099
Longitude 11.5390 ± 0.0150
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1046519

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1092
Semi-minor axis of confidence ellipse (meter) 860
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 1627.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 91
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.84
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.40659
Number of stations at which the event was observed 77
Number of stations from which data was used for origin computation 36
Magnitude information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1046519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:08:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VARE.HHE. 2010-05-04T12:28:02.04 10.0 undecidable manual Sg 0 0 0
SI.ABSI.BHN. 2010-05-04T12:28:01.36 10.0 undecidable manual Sn 0 0 0
IV.CSSN.SHZ. 2010-05-04T12:28:00.38 10.0 undecidable manual Pn 0 0 0
IV.PTCC.HHZ. 2010-05-04T12:27:59.94 10.0 undecidable manual Sn 0 0 0
RF.GEPF.HHZ. 2010-05-04T12:27:56.30 10.0 undecidable manual Sn 0 0 0
SI.KOSI.BHZ. 2010-05-04T12:27:54.57 10.0 undecidable manual Sn 0 0 0
IV.CRAC.EHE. 2010-05-04T12:27:52.41 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHN. 2010-05-04T12:27:49.45 10.0 undecidable manual Pn 0 0 0
IV.CTL8.EHN. 2010-05-04T12:27:46.61 10.0 undecidable manual Pn 0 0 0
SI.RISI.BHN. 2010-05-04T12:27:44.20 10.0 undecidable manual Pn 0 0 0
IV.SOI.EHN. 2010-05-04T12:27:42.40 10.0 undecidable manual Pn 0 0 0
MN.TUE.HHZ. 2010-05-04T12:27:41.29 10.0 undecidable manual Sn 0 0 0
IV.SENI.EHN. 2010-05-04T12:27:41.02 10.0 undecidable manual Pn 0 0 0
OE.WTTA.HHN. 2010-05-04T12:27:38.47 10.0 undecidable manual Pg 0 0 0
MN.TUE.HHZ. 2010-05-04T12:27:35.22 10.0 undecidable manual Pn 0 0 0
IV.T0104.HHZ. 2010-05-04T12:27:34.84 10.0 undecidable manual Pn 0 0 0
SI.ROSI.BHZ. 2010-05-04T12:27:34.21 10.0 undecidable manual Pg 0 0 0
NI.ACOM.HHZ. 2010-05-04T12:27:33.10 10.0 undecidable manual Pg 0 0 0
SI.MOSI.BHZ. 2010-05-04T12:27:31.15 10.0 undecidable manual Pg 0 0 0
IV.PTCC.HHZ. 2010-05-04T12:27:31.31 10.0 undecidable manual Pg 0 0 0
IV.BRMO.HHE. 2010-05-04T12:27:30.51 10.0 undecidable manual Pg 0 0 0
SI.ABSI.BHN. 2010-05-04T12:27:30.81 10.0 undecidable manual Pg 0 0 0
IV.MRB1.HHN. 2010-05-04T12:27:29.44 10.0 undecidable manual Pn 0 0 0
RF.GEPF.HHZ. 2010-05-04T12:27:28.41 10.0 undecidable manual Pg 0 0 0
IV.PRMA.HHE. 2010-05-04T12:27:28.82 10.0 undecidable manual Pn 0 0 0
IV.T0106.EHN. 2010-05-04T12:27:27.87 10.0 undecidable manual Pg 0 0 0
IV.APPI.EHE. 2010-05-04T12:27:27.64 10.0 undecidable manual Pg 0 0 0
SI.KOSI.BHZ. 2010-05-04T12:27:27.15 10.0 undecidable manual Pg 0 0 0
NI.VINO.HHZ. 2010-05-04T12:27:27.58 0.3 undecidable manual Pg 30 267.1326 -1.517 17
IV.T0107.HLZ. 2010-05-04T12:27:27.14 10.0 undecidable manual Pn 0 0 0
NI.SABO.HHZ. 2010-05-04T12:27:26.61 0.3 undecidable manual Pg 39 259.0407 -1.487 19
IV.LATE.HHN. 2010-05-04T12:27:26.59 10.0 undecidable manual Sg 0 0 0
NI.PALA.HHZ. 2010-05-04T12:27:25.87 0.6 undecidable manual Pg 25 253.3575 -1.515 13
MN.TRI.HHZ. 2010-05-04T12:27:24.13 0.3 undecidable manual Pg 45 243.4674 -2.027 14
IV.SMA1.EHZ. 2010-05-04T12:27:24.11 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHZ. 2010-05-04T12:27:23.92 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2010-05-04T12:27:22.72 0.6 undecidable manual Pg 145 212.7315 0.396 28
IV.FDMO.HHE. 2010-05-04T12:27:22.04 10.0 undecidable manual Pg 0 0 0
IV.NOVE.EHE. 2010-05-04T12:27:22.34 10.0 undecidable manual Pn 0 0 0
NI.POLC.HHZ. 2010-05-04T12:27:22.26 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2010-05-04T12:27:21.25 10.0 undecidable manual Pg 0 0 0
IV.ROVR.HHZ. 2010-05-04T12:27:19.73 10.0 undecidable manual Pg 0 0 0
IV.GUMA.HHZ. 2010-05-04T12:27:19.37 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHN. 2010-05-04T12:27:19.19 10.0 undecidable manual Pg 0 0 0
IV.MAGA.HHZ. 2010-05-04T12:27:18.90 0.3 undecidable manual Pg 338 190.8645 -0.712 44
IV.BLLA.EHE. 2010-05-04T12:27:18.45 10.0 undecidable manual Pg 0 0 0
NI.CGRP.HHE. 2010-05-04T12:27:18.33 0.3 undecidable manual Pg 6 189.8655 -1.151 36
IV.LATE.HHN. 2010-05-04T12:27:18.84 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHN. 2010-05-04T12:27:17.86 0.6 undecidable manual Pg 139 170.2962 0.807 31
IV.PARC.HHN. 2010-05-04T12:27:16.42 0.6 undecidable manual Sg 136 81.1521 0.675 41
IV.MSSA.HHN. 2010-05-04T12:27:16.40 10.0 undecidable manual Pg 0 0 0
IV.CSNT.HHE. 2010-05-04T12:27:16.65 0.6 undecidable manual Sg 194 80.8635 0.983 36
IV.CRE.HHZ. 2010-05-04T12:27:13.53 0.6 undecidable manual Sg 152 70.374 0.548 44
IV.ARVD.HHZ. 2010-05-04T12:27:13.50 0.6 undecidable manual Pg 123 135.2646 0.809 35
IV.MGAB.HHZ. 2010-05-04T12:27:13.94 0.6 undecidable manual Pg 162 147.9408 -0.32 41
MN.VSL.HHN. 2010-05-04T12:27:12.56 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2010-05-04T12:27:12.47 0.3 undecidable manual Pg 142 128.7711 0.59 58
IV.ATFO.HHZ. 2010-05-04T12:27:11.83 0.1 undecidable manual Pg 137 122.3886 0.747 74
IV.CRMI.HHZ. 2010-05-04T12:27:11.06 0.6 undecidable manual Sg 227 62.6928 0.013 51
IV.FSSB.SHZ. 2010-05-04T12:27:10.11 0.6 undecidable manual Pg 118 112.5984 0.237 44
IV.VARE.HHE. 2010-05-04T12:27:10.31 10.0 undecidable manual Pg 0 0 0
IV.SBPO.HHN. 2010-05-04T12:27:10.35 0.6 undecidable manual Pg 333 108.3138 1.014 34
IV.ATVO.HHZ. 2010-05-04T12:27:10.17 0.3 undecidable manual Pg 142 112.4985 0.319 65
IV.ATPI.EHZ. 2010-05-04T12:27:09.20 0.3 undecidable manual Pg 139 106.3158 0.161 69
IV.GRFL.SHZ. 2010-05-04T12:27:09.81 0.3 undecidable manual Pg 202 123.1878 -1.372 43
IV.PESA.HHE. 2010-05-04T12:27:09.49 0.6 undecidable manual Pg 104 107.0151 0.349 44
IV.PIEI.HHN. 2010-05-04T12:27:08.70 0.1 undecidable manual Pg 132 107.0151 -0.435 87
IV.CAFI.HHZ. 2010-05-04T12:27:08.14 0.1 negative manual Pg 160 100.3218 0.007 95
IV.ERBM.EHZ. 2010-05-04T12:27:08.34 0.6 undecidable manual Pg 287 93.3399 1.263 31
IV.ATPC.HHZ. 2010-05-04T12:27:08.93 0.3 undecidable manual Pg 136 106.8153 -0.175 69
IV.CDCA.EHZ. 2010-05-04T12:27:08.31 10.0 undecidable manual Pg 0 0 0
MN.VLC.HHE. 2010-05-04T12:27:07.27 0.3 undecidable manual Pg 269 91.7415 0.423 67
IV.BADI.EHZ. 2010-05-04T12:27:06.95 0.1 undecidable manual Pg 143 93.3399 -0.123 95
IV.RSM.HHZ. 2010-05-04T12:27:05.28 0.1 undecidable manual Pg 111 77.6667 0.541 89
IV.SFI.EHZ. 2010-05-04T12:27:05.10 0.6 undecidable manual Sg 141 39.1275 -0.27 51
IV.CSNT.HHE. 2010-05-04T12:27:04.88 0.1 negative manual Pg 194 80.8635 -0.337 94
IV.FAEN.HHE. 2010-05-04T12:27:04.44 0.6 undecidable manual Sg 65 29.4483 1.142 39
IV.PARC.HHN. 2010-05-04T12:27:04.87 0.1 undecidable manual Pg 136 81.1521 -0.392 92
IV.CRE.HHZ. 2010-05-04T12:27:03.50 0.1 undecidable manual Pg 152 70.374 -0.168 99
IV.CRMI.HHZ. 2010-05-04T12:27:02.27 0.1 negative manual Pg 227 62.6928 -0.28 98
IV.CMPO.HHE. 2010-05-04T12:27:01.32 0.1 undecidable manual Pg 25 49.2174 0.683 90
IV.ZCCA.HHZ. 2010-05-04T12:27:01.10 0.1 undecidable manual Pg 293 48.618 0.557 94
IV.FIU.EHZ. 2010-05-04T12:27:01.61 0.1 undecidable manual Pg 356 51.2154 0.695 90
IV.MTRZ.HHZ. 2010-05-04T12:27:01.23 0.3 undecidable manual Sg 328 17.3715 0.068 84
IV.ASQU.HHN. 2010-05-04T12:27:01.01 10.0 undecidable manual Pg 0 0 0
IV.RAVA.EHN. 2010-05-04T12:26:58.85 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHE. 2010-05-04T12:26:58.02 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHZ. 2010-05-04T12:26:58.59 0.1 positive manual Pg 141 39.1275 -0.683 90
IV.FAEN.HHE. 2010-05-04T12:26:57.68 0.1 negative manual Pg 65 29.4483 -0.397 100
IV.MTRZ.HHZ. 2010-05-04T12:26:56.02 0.1 negative manual Pg 328 17.3715 -0.823 87
IV.VMG.SHZ. 2010-05-04T12:26:56.71 0.1 negative manual Pg 179 24.1536 -0.78 89
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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
Waveforms Seismic signals in miniseed + resp format Download