Earthquake with magnitude of ML 3.2 on date 01-04-2015 and time 06:58:11 (Italy) in region 7 km SW Brisighella (RA)

A magnitude ML 3.2 earthquake occured in region: 7 km SW Brisighella (RA), on

  • 01-04-2015 04:58:11 (UTC)
  • 01-04-2015 06:58:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1800, 11.7100 at 21 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
Brisighella RA 7 7639 7639
Modigliana FC 7 4560 12199
Casola Valsenio RA 8 2617 14816
Riolo Terme RA 11 5720 20536
Tredozio FC 11 1212 21748
Marradi FI 14 3139 24887
Borgo Tossignano BO 15 3288 28175
Fontanelice BO 15 1943 30118
Palazzuolo sul Senio FI 15 1154 31272
Casalfiumanese BO 15 3438 34710
Dovadola FC 16 1653 36363
Castel del Rio BO 17 1246 37609
Rocca San Casciano FC 17 1910 39519
Castel Bolognese RA 17 9554 49073
Portico e San Benedetto FC 18 756 49829
Faenza RA 18 58541 108370
Castrocaro Terme e Terra del Sole FC 19 6426 114796
Imola BO 19 69797 184593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SW of Faenza (58541 inhabitants)
19 Km S of Imola (69797 inhabitants)
27 Km W of Forlì (117913 inhabitants)
43 Km W of Cesena (96758 inhabitants)
46 Km SE of Bologna (386663 inhabitants)
47 Km SW of Ravenna (159116 inhabitants)
58 Km NE of Firenze (382808 inhabitants)
59 Km NE of Prato (191150 inhabitants)
63 Km NE of Scandicci (50609 inhabitants)
69 Km E of Pistoia (90315 inhabitants)
70 Km W of Rimini (147750 inhabitants)
73 Km S of Ferrara (133155 inhabitants)
81 Km N of Arezzo (99543 inhabitants)
81 Km SE of Modena (184973 inhabitants)
94 Km SE of Carpi (70699 inhabitants)
99 Km S of Rovigo (51867 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 3.2 2015-04-01
04:58:11
44.1802 11.71 21 2015-10-19
09:28:02
Bollettino Sismico Italiano INGV 18140011
Reviewed
Rev100
ML 3.2 2015-04-01
04:58:11
44.2062 11.7437 23 2015-04-01
05:17:05
Sala Sismica INGV-Roma 18129651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-04-01 04:58:11 ± 0.07
Latitude 44.1802 ± 0.0045
Longitude 11.7100 ± 0.0050
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 18140011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 84
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 83
Number of defining phases 81
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.77801
Number of stations at which the event was observed 67
Number of stations from which data was used for origin computation 65
Magnitudes information

ML:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 18140011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-01 13:34:53

ML:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations 55
Type of magnitude ML
Reference to an origin 18129651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-04-01 05:17:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.RISI.HHZ. 2015-04-01T04:58:55.26 0.6 undecidable manual P 5 308.358 54 -0.31 12
SI.ROSI.HHZ. 2015-04-01T04:58:54.98 0.6 undecidable manual P 356 305.7606 54 -0.25 12
SI.ABSI.HHZ. 2015-04-01T04:58:51.66 0.6 undecidable manual P 354 284.3043 54 -0.91 12
GU.PCP.HHZ. 2015-04-01T04:58:49.46 3.0 negative manual Pn -0.17 0
IV.MDI.HHZ. 2015-04-01T04:58:45.58 0.6 undecidable manual P 319 235.7862 54 -0.95 18
GU.GORR.HHZ. 2015-04-01T04:58:42.36 0.6 undecidable manual P 285 197.358 54 0.61 27
IV.BOB.HHZ. 2015-04-01T04:58:41.48 0.6 undecidable manual P 291 190.5648 54 0.58 28
IV.ATVO.HHZ. 2015-04-01T04:58:41.50 0.6 undecidable manual S 148 104.6175 96 -0.55 38
IV.SERM.EHZ. 2015-04-01T04:58:40.20 0.6 undecidable manual S 341 97.7244 97 -0.01 44
IV.CSP1.EHZ. 2015-04-01T04:58:39.11 0.6 undecidable manual P 135 170.1963 54 0.74 29
IV.MSSA.HHZ. 2015-04-01T04:58:39.41 0.6 undecidable manual P 276 174.8916 54 0.46 32
IV.MOMA.HHZ. 2015-04-01T04:58:38.36 0.6 undecidable manual P 155 167.8098 54 0.28 34
IV.FDMO.HHZ. 2015-04-01T04:58:38.83 0.6 undecidable manual P 138 168.3093 54 0.69 30
IV.CASP.HHZ. 2015-04-01T04:58:37.21 0.6 undecidable manual P 204 168.4092 54 -0.94 28
IV.CSNT.HHZ. 2015-04-01T04:58:37.20 0.6 undecidable manual S 203 85.3479 98 0.27 42
IV.OSSC.HHZ. 2015-04-01T04:58:36.50 0.6 undecidable manual S 207 81.7515 99 0.51 40
IV.ARCI.HHZ. 2015-04-01T04:58:35.07 0.6 undecidable manual P 187 148.5402 54 -0.6 35
IV.PLMA.HHZ. 2015-04-01T04:58:35.27 0.3 undecidable manual P 265 148.5402 54 -0.41 55
IV.EL6.EHZ. 2015-04-01T04:58:35.93 0.6 undecidable manual P 130 146.0427 54 0.56 35
IV.ASSB.HHZ. 2015-04-01T04:58:35.74 0.6 undecidable manual P 149 147.4413 54 0.21 38
GU.GRAM.HHZ. 2015-04-01T04:58:34.60 0.6 undecidable manual P 285 134.9649 95 0.81 32
IV.ATCC.EHZ. 2015-04-01T04:58:33.74 0.6 undecidable manual P 146 133.1667 95 0.22 39
IV.PARC.HHZ. 2015-04-01T04:58:33.40 0.6 undecidable manual S 144 72.5718 100 -0.16 45
IV.ZOVE.HNE. 2015-04-01T04:58:33.20 0.6 undecidable manual P 353 142.3464 54 -1.71 20
GU.EQUI.HHZ. 2015-04-01T04:58:32.27 0.6 undecidable manual P 270 123.8871 95 0.18 40
IV.ARVD.HHZ. 2015-04-01T04:58:32.47 0.6 undecidable manual P 127 124.1868 95 0.33 39
IV.TRIF.HHZ. 2015-04-01T04:58:32.94 0.6 undecidable manual P 209 134.7651 95 -0.82 33
IV.CRE.HHZ. 2015-04-01T04:58:32.50 0.6 undecidable manual S 163 65.1903 101 0.87 36
IV.FROS.HHZ. 2015-04-01T04:58:31.14 0.6 undecidable manual P 203 116.4945 96 0.19 41
IV.SBPO.HNE. 2015-04-01T04:58:31.07 0.6 undecidable manual P 327 114.996 96 0.34 40
IV.TEOL.HHZ. 2015-04-01T04:58:31.76 1.0 undecidable manual P 359 131.0688 95 -1.44 12
IV.ATTE.HHZ. 2015-04-01T04:58:31.48 0.6 undecidable manual P 154 120.5904 95 -0.1 41
IV.CPGN.EHZ. 2015-04-01T04:58:31.63 0.6 undecidable manual S 131 64.3911 101 0.22 45
IV.ERBM.EHZ. 2015-04-01T04:58:30.64 3.0 undecidable manual P 285 105.8163 1.3 0
IV.ATFO.HHZ. 2015-04-01T04:58:30.54 0.6 undecidable manual P 142 113.5974 96 0.03 43
IV.PII.HHZ. 2015-04-01T04:58:29.12 0.6 undecidable manual P 242 107.4147 96 -0.45 40
IV.NOVE.EHZ. 2015-04-01T04:58:29.95 0.6 undecidable manual P 311 104.3178 96 0.85 34
IV.PTF.SHZ. 2015-04-01T04:58:29.70 0.6 undecidable manual S 245 56.5989 103 0.31 44
MN.VLC.HHZ. 2015-04-01T04:58:29.89 0.6 undecidable manual P 269 105.3168 96 0.64 37
GU.SARM.HHZ. 2015-04-01T04:58:29.13 0.6 undecidable manual P 271 104.118 96 0.06 43
IV.MPAG.EHZ. 2015-04-01T04:58:28.88 0.6 undecidable manual P 126 103.8183 97 -0.13 42
IV.FSSB.HHZ. 2015-04-01T04:58:28.16 0.6 undecidable manual P 122 100.9212 97 -0.41 40
IV.ATVO.HHZ. 2015-04-01T04:58:28.82 0.6 undecidable manual P 148 104.6175 96 -0.32 41
IV.SERM.EHZ. 2015-04-01T04:58:28.75 0.6 undecidable manual P 341 97.7244 97 0.67 38
GU.MAIM.HHZ. 2015-04-01T04:58:28.26 0.6 undecidable manual P 254 101.5206 97 -0.41 41
IV.PESA.HHZ. 2015-04-01T04:58:28.06 0.6 undecidable manual P 106 93.9393 97 0.56 40
GU.CARD.HHZ. 2015-04-01T04:58:28.30 0.6 undecidable manual P 261 99.3228 97 -0.02 44
IV.ATPI.EHZ. 2015-04-01T04:58:27.98 0.6 undecidable manual P 145 98.0241 97 -0.15 43
IV.CAVE.HHZ. 2015-04-01T04:58:27.46 0.6 undecidable manual P 324 94.4388 97 -0.11 43
IV.OSSC.HHZ. 2015-04-01T04:58:26.17 0.6 undecidable manual P 207 81.7515 99 0.53 40
IV.FNVD.HHZ. 2015-04-01T04:58:26.90 0.3 undecidable manual S 269 46.7199 107 0.05 72
IV.BDI.HHZ. 2015-04-01T04:58:26.88 0.3 undecidable manual P 262 89.5437 98 0.04 66
IV.CSNT.HHZ. 2015-04-01T04:58:26.50 0.6 undecidable manual P 203 85.3479 98 0.31 42
IV.RAVA.EHZ. 2015-04-01T04:58:25.38 0.6 undecidable manual P 324 79.1652 99 0.13 45
IV.RUFI.EHZ. 2015-04-01T04:58:25.80 0.6 undecidable manual S 203 41.2254 109 0.37 45
IV.BADI.EHZ. 2015-04-01T04:58:25.83 0.3 undecidable manual P 150 85.7475 98 -0.43 62
IV.ASQU.HHZ. 2015-04-01T04:58:25.80 0.3 undecidable manual S 172 43.0236 108 -0.09 72
IV.FERS.HNE. 2015-04-01T04:58:25.66 0.6 undecidable manual P 351 81.3519 99 0.08 45
IV.SSP9.EHZ. 2015-04-01T04:58:24.35 0.6 undecidable manual P 153 75.1692 99 -0.3 43
IV.CRMI.HHZ. 2015-04-01T04:58:24.45 0.6 undecidable manual P 234 72.2721 100 0.25 44
GU.POPM.HHZ. 2015-04-01T04:58:24.55 0.6 undecidable manual P 259 77.367 99 -0.42 42
IV.PARC.HHZ. 2015-04-01T04:58:23.70 0.3 undecidable manual P 144 72.5718 100 -0.54 61
IV.RSM2.HHZ. 2015-04-01T04:58:23.57 0.6 undecidable manual P 114 64.491 101 0.55 42
IV.ZCCA.HHZ. 2015-04-01T04:58:23.17 0.6 undecidable manual P 288 61.2942 102 0.63 40
IV.SFI.HNZ. 2015-04-01T04:58:23.80 0.3 undecidable manual S 160 32.4453 115 0.53 67
IV.CPGN.EHZ. 2015-04-01T04:58:23.35 0.6 undecidable manual P 131 64.3911 101 0.35 44
IV.MTRZ.HHZ. 2015-04-01T04:58:22.40 0.6 undecidable manual S 303 27.0507 121 0.4 47
IV.CRE.HHZ. 2015-04-01T04:58:22.94 0.3 undecidable manual P 163 65.1903 101 -0.19 68
IV.SEI.HHZ. 2015-04-01T04:58:22.90 0.3 undecidable manual S 244 31.2465 116 -0.1 74
IV.FIU.EHZ. 2015-04-01T04:58:21.44 0.6 undecidable manual P 341 53.9016 104 0.01 48
IV.MTCR.EHZ. 2015-04-01T04:58:21.94 0.3 undecidable manual P 254 58.7967 103 -0.23 68
IV.CMPO.HNZ. 2015-04-01T04:58:20.22 0.6 undecidable manual P 10 45.1215 107 0.1 48
IV.FAEN.HNZ. 2015-04-01T04:58:20.80 0.3 undecidable manual S 47 17.9709 134 0.72 66
IV.PTF.SHZ. 2015-04-01T04:58:20.96 0.3 undecidable manual P 245 56.5989 103 -0.87 56
IV.ASQU.HHZ. 2015-04-01T04:58:19.69 0.1 positive manual P 172 43.0236 108 -0.12 96
IV.RUFI.EHZ. 2015-04-01T04:58:19.39 0.3 undecidable manual P 203 41.2254 109 -0.16 72
IV.FNVD.HHZ. 2015-04-01T04:58:19.99 0.3 undecidable manual P 269 46.7199 107 -0.37 68
IV.BRIS.HHZ. 2015-04-01T04:58:18.10 0.3 undecidable manual S 42 6.6933 160 -0.32 72
IV.SFI.HNZ. 2015-04-01T04:58:18.09 0.3 positive manual P 160 32.4453 115 -0.21 72
IV.MTRZ.HHZ. 2015-04-01T04:58:17.62 0.1 undecidable manual P 303 27.0507 121 0.05 100
IV.SEI.HHZ. 2015-04-01T04:58:17.74 0.3 undecidable manual P 244 31.2465 116 -0.4 69
IV.FAEN.HNZ. 2015-04-01T04:58:16.37 0.3 undecidable manual P 47 17.9709 134 -0.09 74
IV.BRIS.HHZ. 2015-04-01T04:58:14.95 0.1 positive manual P 42 6.6933 160 -0.55 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHN. ML:4.0 0.07379999999999999 0.34 AML other m 2015-04-01T04:58:18.56
IV.BRIS.HHE. ML:3.8 0.047549999999999995 0.3 AML other m 2015-04-01T04:58:18.32
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