Earthquake with magnitude of ML 3.1 on date 12-04-2009 and time 18:35:53 (Italy) in region 5 km S Campotosto (AQ)

A magnitude ML 3.1 earthquake occured in region: 5 km S Campotosto (AQ), on

  • 12-04-2009 16:35:53 (UTC)
  • 12-04-2009 18:35:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5100, 13.3700 at 9 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
Campotosto AQ 5 542 542
Capitignano AQ 6 665 1207
Barete AQ 10 737 1944
Crognaleto TE 10 1297 3241
Pizzoli AQ 10 4326 7567
Montereale AQ 10 2581 10148
Cagnano Amiterno AQ 13 1369 11517
Fano Adriano TE 15 296 11813
Amatrice RI 15 2657 14470
Pietracamela TE 15 271 14741
Cortino TE 17 656 15397
L'Aquila AQ 18 69753 85150
Scoppito AQ 18 3727 88877
Borbona RI 19 617 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of L'Aquila (69753 inhabitants)
32 Km SW of Teramo (54892 inhabitants)
60 Km E of Terni (111501 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
69 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Roma (2864731 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 2009-04-12
16:35:53
42.51 13.37 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 795859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-12 16:35:53 ± 0.07
Latitude 42.5100 ± 0.0036
Longitude 13.3700 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 795859

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 103
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.40564
Number of stations at which the event was observed 82
Number of stations from which data was used for origin computation 35
Magnitude information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 795859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:04:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.ABSI.BHZ. 2009-04-12T16:37:55.45 10.0 undecidable manual Sn 0 0 0
NI.PALA.HHZ. 2009-04-12T16:37:40.20 10.0 undecidable manual Sn 0 0 0
SI.ROSI.BHN. 2009-04-12T16:37:07.55 10.0 undecidable manual Pn 0 0 0
SI.RISI.BHE. 2009-04-12T16:37:06.51 10.0 undecidable manual Pn 0 0 0
SI.ABSI.BHZ. 2009-04-12T16:37:03.55 10.0 undecidable manual Pn 0 0 0
IV.SBPO.HHE. 2009-04-12T16:37:01.67 10.0 undecidable manual Pn 0 0 0
IV.APPI.EHZ. 2009-04-12T16:37:00.68 10.0 undecidable manual Pn 0 0 0
SI.KOSI.BHZ. 2009-04-12T16:37:00.00 10.0 undecidable manual Pn 0 0 0
IV.SGRT.HHE. 2009-04-12T16:36:55.02 10.0 undecidable manual Pn 0 0 0
IV.PTCC.SHZ. 2009-04-12T16:36:55.04 10.0 undecidable manual Pn 0 0 0
NI.PALA.HHZ. 2009-04-12T16:36:53.88 10.0 undecidable manual Pn 0 0 0
IV.CTI.EHE. 2009-04-12T16:36:53.47 10.0 undecidable manual Sn 0 0 0
IV.ALJA.HHZ. 2009-04-12T16:36:51.45 10.0 undecidable manual Pn 0 0 0
IV.CTI.EHE. 2009-04-12T16:36:50.15 10.0 undecidable manual Pn 0 0 0
IV.CRE.HHZ. 2009-04-12T16:36:47.27 10.0 undecidable manual Sn 0 0 0
IV.PESA.HHZ. 2009-04-12T16:36:45.22 10.0 undecidable manual Sn 0 0 0
IV.MTRZ.HHN. 2009-04-12T16:36:37.54 10.0 undecidable manual Pn 0 0 0
IV.FRES.HHE. 2009-04-12T16:36:36.52 10.0 undecidable manual Sn 0 0 0
IV.MSAG.HHN. 2009-04-12T16:36:36.68 10.0 undecidable manual Pn 0 0 0
IV.SEI.SHZ. 2009-04-12T16:36:34.86 10.0 undecidable manual Pn 0 0 0
IV.ROM9.HHN. 2009-04-12T16:36:30.82 10.0 undecidable manual Pn 0 0 0
IV.VMG.SHZ. 2009-04-12T16:36:29.18 10.0 undecidable manual Pn 0 0 0
IV.MA9.HHZ. 2009-04-12T16:36:29.07 10.0 undecidable manual Sg 0 0 0
IV.ASQU.HHN. 2009-04-12T16:36:28.70 10.0 undecidable manual Pn 0 0 0
IV.MELA.HHN. 2009-04-12T16:36:27.28 10.0 undecidable manual Pn 0 0 0
IV.CSNT.HHZ. 2009-04-12T16:36:27.26 10.0 undecidable manual Pn 0 0 0
IV.CRE.HHZ. 2009-04-12T16:36:27.19 10.0 undecidable manual Pn 0 0 0
IV.SFI.EHZ. 2009-04-12T16:36:27.55 10.0 undecidable manual Pn 0 0 0
IV.GRFL.SHZ. 2009-04-12T16:36:27.20 10.0 undecidable manual Pn 0 0 0
IV.RSM.SHZ. 2009-04-12T16:36:25.97 10.0 undecidable manual Pn 0 0 0
IV.PESA.HHZ. 2009-04-12T16:36:25.01 10.0 undecidable manual Pn 0 0 0
IV.MSC.EHZ. 2009-04-12T16:36:24.73 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHN. 2009-04-12T16:36:24.21 10.0 undecidable manual Pn 0 0 0
IV.FG2.SHZ. 2009-04-12T16:36:23.39 10.0 undecidable manual Pn 0 0 0
IV.RFI.SHZ. 2009-04-12T16:36:22.26 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHZ. 2009-04-12T16:36:22.73 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHZ. 2009-04-12T16:36:22.19 10.0 undecidable manual Pn 0 0 0
IV.VAGA.HHZ. 2009-04-12T16:36:22.52 10.0 undecidable manual Pn 0 0 0
IV.CDCA.EHZ. 2009-04-12T16:36:21.21 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2009-04-12T16:36:20.61 0.6 undecidable manual Pn 324 156.0216 0.993 28
IV.FRES.HHE. 2009-04-12T16:36:19.67 10.0 undecidable manual Pn 0 0 0
IV.CAFI.HHZ. 2009-04-12T16:36:18.73 0.3 undecidable manual Pn 309 145.743 0.694 50
IV.TRIV.HHZ. 2009-04-12T16:36:18.85 10.0 undecidable manual Pn 0 0 0
IV.BADI.EHZ. 2009-04-12T16:36:18.74 0.6 undecidable manual Pn 321 143.6451 1.035 29
IV.FSSB.SHZ. 2009-04-12T16:36:17.45 10.0 undecidable manual Pg 0 0 0
IV.LATE.HHZ. 2009-04-12T16:36:17.14 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHE. 2009-04-12T16:36:16.98 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-12T16:36:16.18 0.6 undecidable manual Sg 141 70.6737 0.504 42
IV.PIEI.HHE. 2009-04-12T16:36:16.58 0.6 undecidable manual Pg 330 132.3675 0.608 36
IV.CERA.HHE. 2009-04-12T16:36:16.57 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHN. 2009-04-12T16:36:15.72 0.3 undecidable manual Pg 288 124.8861 0.905 48
IV.MGAB.HHZ. 2009-04-12T16:36:15.26 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-12T16:36:14.57 0.6 undecidable manual Pg 247 122.7882 0.072 42
IV.CESI.HHZ. 2009-04-12T16:36:14.31 0.6 undecidable manual Sg 326 66.6777 -0.312 44
IV.MIDA.HHE. 2009-04-12T16:36:14.20 0.3 undecidable manual Pg 143 120.7902 0.019 63
IV.AOI.HHZ. 2009-04-12T16:36:14.00 0.6 undecidable manual Pg 9 116.8941 0.418 39
IV.POFI.HHE. 2009-04-12T16:36:13.31 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHN. 2009-04-12T16:36:13.38 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-12T16:36:13.58 0.3 undecidable manual Sg 339 62.6928 0.009 71
IV.MA9.HHZ. 2009-04-12T16:36:13.59 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHN. 2009-04-12T16:36:13.38 0.3 undecidable manual Pg 343 114.8961 0.094 63
IV.LAV9.SHZ. 2009-04-12T16:36:13.52 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHZ. 2009-04-12T16:36:12.26 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHZ. 2009-04-12T16:36:12.28 0.3 undecidable manual Sg 256 58.0974 -0.039 72
IV.PTQR.SHZ. 2009-04-12T16:36:12.58 0.3 undecidable manual Sg 177 54.2013 1.278 46
IV.GIUL.HHZ. 2009-04-12T16:36:11.99 0.3 undecidable manual Pg 185 106.0161 0.076 65
IV.RMP.HHZ. 2009-04-12T16:36:11.98 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-12T16:36:10.01 0.3 undecidable manual Pg 158 95.9262 -0.34 62
IV.POFI.HHE. 2009-04-12T16:36:10.96 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-12T16:36:10.31 0.3 undecidable manual Pg 352 97.0251 -0.214 64
IV.CAFR.HHZ. 2009-04-12T16:36:09.00 0.3 undecidable manual Pg 111 86.0472 0.173 66
IV.SNTG.SHZ. 2009-04-12T16:36:09.20 0.6 undecidable manual Pg 337 89.6436 -0.191 44
IV.LPEL.HHN. 2009-04-12T16:36:08.07 0.3 undecidable manual Pg 127 84.249 -0.486 62
IV.ASSB.HHZ. 2009-04-12T16:36:08.21 0.3 undecidable manual Pg 316 82.6506 -0.104 67
IV.GUAR.HHZ. 2009-04-12T16:36:08.11 0.3 undecidable manual Pg 183 79.5648 0.279 65
IV.VCEL.EHZ. 2009-04-12T16:36:07.49 0.6 undecidable manual Sg 108 40.626 -0.174 48
IV.NRCA.HHZ. 2009-04-12T16:36:07.49 0.3 undecidable manual Sg 330 41.4252 -0.404 68
IV.CERT.HHZ. 2009-04-12T16:36:06.06 0.1 undecidable manual Pg 207 69.9744 -0.292 89
IV.MTCE.HHE. 2009-04-12T16:36:06.77 0.3 undecidable manual Pg 224 74.6697 -0.313 66
IV.INTR.HHZ. 2009-04-12T16:36:06.33 0.1 positive manual Pg 141 70.6737 -0.127 91
IV.VVLD.HHZ. 2009-04-12T16:36:06.56 0.3 undecidable manual Pg 164 74.0703 -0.425 64
IV.FIAM.HHE. 2009-04-12T16:36:05.30 0.6 undecidable manual Sg 218 33.9438 -0.578 44
IV.TRTR.HHZ. 2009-04-12T16:36:05.08 0.1 positive manual Pg 53 55.3002 0.983 71
IV.CESI.HHZ. 2009-04-12T16:36:05.68 0.1 undecidable manual Pg 326 66.6777 -0.166 91
IV.FAGN.HHZ. 2009-04-12T16:36:05.30 0.6 undecidable manual Sg 147 32.3454 -0.144 49
IV.MNS.HHZ. 2009-04-12T16:36:04.29 0.1 undecidable manual Pg 256 58.0974 -0.229 92
IV.OFFI.HHZ. 2009-04-12T16:36:04.39 0.3 undecidable manual Pg 29 53.7018 0.548 64
IV.LNSS.HHN. 2009-04-12T16:36:04.14 0.3 undecidable manual Sg 291 28.8489 -0.175 73
IV.FDMO.HHE. 2009-04-12T16:36:04.89 0.1 undecidable manual Pg 339 62.6928 -0.348 89
IV.PTQR.SHZ. 2009-04-12T16:36:03.63 0.1 undecidable manual Pg 177 54.2013 -0.3 91
IV.CESX.HHN. 2009-04-12T16:36:03.99 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-04-12T16:36:01.63 0.1 undecidable manual Pg 108 40.626 -0.2 95
IV.TERO.HHZ. 2009-04-12T16:36:01.71 0.3 undecidable manual Sg 57 22.8549 -0.639 65
IV.NRCA.HHZ. 2009-04-12T16:36:01.74 0.1 undecidable manual Pg 330 41.4252 -0.223 95
IV.FAGN.HHZ. 2009-04-12T16:36:00.40 0.1 undecidable manual Pg 147 32.3454 -0.15 98
IV.FIAM.HHE. 2009-04-12T16:36:00.75 0.1 positive manual Pg 218 33.9438 -0.049 99
MN.AQU.HHZ. 2009-04-12T16:36:00.65 0.3 undecidable manual Sg 171 17.5713 -0.025 77
I1.MSCL.BHN. 2009-04-12T16:35:59.41 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHN. 2009-04-12T16:35:59.96 0.1 positive manual Pg 291 28.8489 0.065 100
IV.TERO.HHZ. 2009-04-12T16:35:58.60 0.1 positive manual Pg 57 22.8549 -0.16 99
MN.AQU.HHZ. 2009-04-12T16:35:58.26 0.1 positive manual Pg 171 17.5713 0.468 94
IV.CAMP.HHZ. 2009-04-12T16:35:57.15 0.3 undecidable manual Sg 49 4.2957 -0.104 78
IV.CAMP.HHZ. 2009-04-12T16:35:56.14 0.1 positive manual Pg 49 4.2957 0.322 99
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