Earthquake with magnitude of ML 2.9 on date 24-05-2011 and time 21:00:54 (Italy) in region 4 km E Bagno di Romagna (FC)

A magnitude ML 2.9 earthquake occured in region: 4 km E Bagno di Romagna (FC), on

  • 24-05-2011 19:00:54 (UTC)
  • 24-05-2011 21:00:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8650, 12.0230 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
Bagno di Romagna FC 4 6026 6026
Verghereto FC 8 1907 7933
Sarsina FC 11 3446 11379
Santa Sofia FC 13 4136 15515
Casteldelci RN 13 407 15922
Sant'Agata Feltria RN 15 2151 18073
Civitella di Romagna FC 17 3786 21859
Galeata FC 17 2516 24375
Mercato Saraceno FC 17 6886 31261
Chiusi della Verna AR 20 2023 33284

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Cesena (96758 inhabitants)
40 Km S of Forlì (117913 inhabitants)
46 Km N of Arezzo (99543 inhabitants)
48 Km S of Faenza (58541 inhabitants)
49 Km W of Rimini (147750 inhabitants)
60 Km SE of Imola (69797 inhabitants)
62 Km E of Firenze (382808 inhabitants)
63 Km S of Ravenna (159116 inhabitants)
69 Km E of Scandicci (50609 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
74 Km E of Prato (191150 inhabitants)
80 Km W of Fano (60888 inhabitants)
82 Km NE of Siena (53903 inhabitants)
89 Km SE of Bologna (386663 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
89 Km NW of Perugia (166134 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
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 2.9 2011-05-24
19:00:54
43.865 12.023 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1218569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-24 19:00:54 ± 0.17
Latitude 43.8650 ± 0.0081
Longitude 12.0230 ± 0.0125
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1218569

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 881
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 1345.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 94
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.18351
Number of stations at which the event was observed 76
Number of stations from which data was used for origin computation 27
Magnitude information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1218569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:53:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.SABO.HHE. 2011-05-24T19:02:00.21 10.0 undecidable manual Sn 0 0 0
NI.AGOR.HHE. 2011-05-24T19:01:55.38 10.0 undecidable manual Sn 0 0 0
IV.ROVR.HHN. 2011-05-24T19:01:54.70 10.0 undecidable manual Sn 0 0 0
NI.ACOM.HHZ. 2011-05-24T19:01:53.45 10.0 undecidable manual Sn 0 0 0
IV.FVI.HHN. 2011-05-24T19:01:49.59 10.0 undecidable manual Sn 0 0 0
NI.AGOR.HHE. 2011-05-24T19:01:43.83 10.0 undecidable manual Pn 0 0 0
IV.APPI.EHZ. 2011-05-24T19:01:42.68 10.0 undecidable manual Pn 0 0 0
IV.INTR.HHN. 2011-05-24T19:01:42.34 10.0 undecidable manual Sn 0 0 0
IV.VVLD.HHN. 2011-05-24T19:01:42.25 10.0 undecidable manual Sn 0 0 0
NI.ACOM.HHZ. 2011-05-24T19:01:42.88 10.0 undecidable manual Pn 0 0 0
IV.FVI.HHN. 2011-05-24T19:01:42.15 10.0 undecidable manual Pn 0 0 0
IV.CERT.HHZ. 2011-05-24T19:01:40.31 10.0 undecidable manual Sn 0 0 0
IV.POFI.HHZ. 2011-05-24T19:01:39.68 10.0 undecidable manual Pn 0 0 0
IV.GUAR.HHZ. 2011-05-24T19:01:39.18 10.0 undecidable manual Pn 0 0 0
IV.BOB.HHE. 2011-05-24T19:01:38.29 10.0 undecidable manual Pn 0 0 0
IV.SALO.HHE. 2011-05-24T19:01:38.18 10.0 undecidable manual Pn 0 0 0
IV.AGST.EHZ. 2011-05-24T19:01:37.34 10.0 undecidable manual Pn 0 0 0
IV.RMP.HHN. 2011-05-24T19:01:37.79 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHN. 2011-05-24T19:01:37.11 10.0 undecidable manual Pn 0 0 0
NI.PALA.HHZ. 2011-05-24T19:01:36.47 10.0 undecidable manual Pn 0 0 0
IV.INTR.HHN. 2011-05-24T19:01:36.88 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2011-05-24T19:01:36.61 10.0 undecidable manual Sn 0 0 0
IV.CERT.HHZ. 2011-05-24T19:01:36.29 10.0 undecidable manual Pn 0 0 0
NI.CGRP.HHE. 2011-05-24T19:01:35.08 10.0 undecidable manual Sn 0 0 0
NI.SABO.HHE. 2011-05-24T19:01:35.47 10.0 undecidable manual Pn 0 0 0
IV.PTQR.HHN. 2011-05-24T19:01:35.09 10.0 undecidable manual Pn 0 0 0
IV.VCEL.EHE. 2011-05-24T19:01:34.27 10.0 undecidable manual Pn 0 0 0
IV.ROVR.HHN. 2011-05-24T19:01:33.31 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2011-05-24T19:01:32.20 10.0 undecidable manual Pn 0 0 0
IV.FAGN.HHE. 2011-05-24T19:01:32.70 10.0 undecidable manual Pn 0 0 0
IV.T0104.HHZ. 2011-05-24T19:01:32.09 10.0 undecidable manual Pn 0 0 0
IV.MSSA.HHZ. 2011-05-24T19:01:31.12 10.0 undecidable manual Pn 0 0 0
GU.SC2M.HHZ. 2011-05-24T19:01:31.97 10.0 undecidable manual Pn 0 0 0
NI.CGRP.HHE. 2011-05-24T19:01:29.45 10.0 undecidable manual Pn 0 0 0
IV.TOLF.HHZ. 2011-05-24T19:01:29.93 10.0 undecidable manual Pn 0 0 0
IV.FIAM.HHZ. 2011-05-24T19:01:29.11 10.0 undecidable manual Pn 0 0 0
IV.TERO.HHN. 2011-05-24T19:01:28.76 10.0 undecidable manual Pn 0 0 0
IV.CAMP.HHZ. 2011-05-24T19:01:28.38 10.0 undecidable manual Pn 0 0 0
IV.OFFI.HHZ. 2011-05-24T19:01:26.76 10.0 undecidable manual Pn 0 0 0
IV.GROG.HHE. 2011-05-24T19:01:25.59 10.0 undecidable manual Pn 0 0 0
IV.RM32.EHZ. 2011-05-24T19:01:25.13 10.0 undecidable manual Pn 0 0 0
IV.FIU.EHE. 2011-05-24T19:01:25.88 10.0 undecidable manual Sg 0 0 0
IV.PLMA.HHZ. 2011-05-24T19:01:24.60 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2011-05-24T19:01:23.95 10.0 undecidable manual Pg 0 0 0
IV.RAVA.EHN. 2011-05-24T19:01:23.20 10.0 undecidable manual Pg 0 0 0
IV.TEOL.HHZ. 2011-05-24T19:01:22.63 10.0 undecidable manual Pg 0 0 0
IV.GUMA.HHE. 2011-05-24T19:01:22.19 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHZ. 2011-05-24T19:01:21.09 10.0 undecidable manual Pg 0 0 0
IV.CASP.HHZ. 2011-05-24T19:01:21.40 10.0 undecidable manual Pg 0 0 0
IV.LATE.HHZ. 2011-05-24T19:01:19.51 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHN. 2011-05-24T19:01:18.67 10.0 undecidable manual Pg 0 0 0
IV.AOI.HHZ. 2011-05-24T19:01:18.54 0.6 undecidable manual Pg 105 131.3685 1.286 25
IV.FDMO.HHN. 2011-05-24T19:01:16.25 0.3 undecidable manual Pg 137 125.6742 -0.127 59
IV.FIU.EHE. 2011-05-24T19:01:16.06 10.0 undecidable manual Pg 0 0 0
IV.FSSB.HHZ. 2011-05-24T19:01:16.34 0.3 undecidable manual Sg 107 63.3921 0.921 52
IV.CESI.HHZ. 2011-05-24T19:01:16.14 0.6 undecidable manual Pg 143 118.992 0.802 33
IV.SENI.EHZ. 2011-05-24T19:01:16.84 10.0 undecidable manual Pg 0 0 0
GU.MAIM.HHZ. 2011-05-24T19:01:15.59 0.6 undecidable manual Pg 273 122.4885 -0.296 38
IV.BDI.HHZ. 2011-05-24T19:01:15.53 10.0 undecidable manual Pg 0 0 0
IV.ATVO.HHN. 2011-05-24T19:01:15.13 0.6 undecidable manual Sg 150 61.7937 0.127 45
IV.ARCI.HHZ. 2011-05-24T19:01:15.79 0.1 undecidable manual Pg 202 120.6903 0.176 79
IV.SBPO.HHN. 2011-05-24T19:01:14.68 10.0 undecidable manual Pg 0 0 0
IV.ORI.HHE. 2011-05-24T19:01:14.11 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHZ. 2011-05-24T19:01:14.88 0.3 undecidable manual Pg 185 113.0979 0.453 57
IV.CING.HHE. 2011-05-24T19:01:14.05 0.6 undecidable manual Pg 120 108.7134 0.287 40
IV.ATPC.HHE. 2011-05-24T19:01:13.67 0.3 undecidable manual Sg 141 55.1004 0.466 63
IV.MGAB.HHE. 2011-05-24T19:01:13.85 0.1 undecidable manual Pg 176 105.9162 0.527 75
IV.PIEI.HHZ. 2011-05-24T19:01:13.11 0.3 undecidable manual Sg 131 55.0005 -0.076 69
IV.SNTG.HHZ. 2011-05-24T19:01:12.59 0.1 undecidable manual Pg 132 100.122 0.158 83
IV.MTRZ.HHN. 2011-05-24T19:01:12.72 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHZ. 2011-05-24T19:01:10.10 0.1 undecidable manual Sg 156 43.2234 0.051 94
IV.ARVD.HHZ. 2011-05-24T19:01:09.76 0.1 undecidable manual Pg 119 84.249 -0.226 84
IV.ATTE.HHZ. 2011-05-24T19:01:09.23 0.6 undecidable manual Pg 160 78.6657 0.101 44
IV.FNVD.HHZ. 2011-05-24T19:01:08.89 0.3 undecidable manual Pg 295 79.2651 -0.33 62
IV.MURB.HHN. 2011-05-24T19:01:08.73 1.0 undecidable manual Pg 149 78.0663 -0.303 21
IV.SSFR.HHE. 2011-05-24T19:01:08.64 0.3 undecidable manual Pg 128 77.367 -0.282 63
IV.PESA.HHZ. 2011-05-24T19:01:07.11 0.3 undecidable manual Pg 82 65.8896 -0.052 68
IV.FRON.EHZ. 2011-05-24T19:01:07.09 0.1 undecidable manual Pg 124 68.2761 -0.438 83
IV.IMOL.EHN. 2011-05-24T19:01:06.62 0.1 undecidable manual Pg 338 59.1963 0.481 83
IV.FIR.HHZ. 2011-05-24T19:01:06.15 10.0 undecidable manual Pg 0 0 0
IV.FSSB.HHZ. 2011-05-24T19:01:06.43 0.3 undecidable manual Pg 107 63.3921 -0.342 64
IV.ATVO.HHN. 2011-05-24T19:01:06.10 0.1 undecidable manual Pg 150 61.7937 -0.429 84
IV.SEI.SHZ. 2011-05-24T19:01:05.13 0.3 undecidable manual Pg 292 56.9985 -0.664 59
IV.PIEI.HHZ. 2011-05-24T19:01:04.76 0.1 undecidable manual Pg 131 55.0005 -0.722 77
IV.ATPC.HHE. 2011-05-24T19:01:04.96 0.3 undecidable manual Pg 141 55.1004 -0.531 62
IV.BLLA.EHE. 2011-05-24T19:01:04.96 0.3 undecidable manual Pg 49 47.2194 0.68 59
IV.BADI.EHZ. 2011-05-24T19:01:03.09 0.1 undecidable manual Pg 156 43.2234 -0.576 83
IV.ERBM.EHZ. 2011-05-24T19:01:02.50 10.0 undecidable manual Pg 0 0 0
IV.ASQU.HHE. 2011-05-24T19:01:02.61 0.1 undecidable manual Sg 248 20.1687 0.351 92
IV.VMG.SHZ. 2011-05-24T19:01:02.45 0.6 undecidable manual Pg 286 39.7269 -0.555 42
IV.NL9.EHZ. 2011-05-24T19:01:00.32 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHN. 2011-05-24T19:01:00.56 0.1 undecidable manual Sg 288 14.7741 0.076 98
IV.ASQU.HHE. 2011-05-24T19:00:59.29 0.1 undecidable manual Pg 248 20.1687 0.118 97
IV.SFI.EHN. 2011-05-24T19:00:58.15 0.1 undecidable manual Pg 288 14.7741 0.001 100
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