Earthquake with magnitude of ML 2.7 on date 23-04-2009 and time 22:52:15 (UTC) in region 1 km NW Rocca di Cambio (AQ)

A magnitude ML 2.7 earthquake occured in region: 1 km NW Rocca di Cambio (AQ), on

  • 23-04-2009 22:52:15 (UTC)
  • 24-04-2009 00:52:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2450, 13.4830 at 10 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
Rocca di Cambio AQ 1 533 533
Ocre AQ 5 1167 1700
Rocca di Mezzo AQ 5 1526 3226
Villa Sant'Angelo AQ 5 424 3650
Fossa AQ 6 721 4371
Sant'Eusanio Forconese AQ 6 394 4765
Fagnano Alto AQ 8 418 5183
San Demetrio ne' Vestini AQ 8 1854 7037
Poggio Picenze AQ 10 1136 8173
Fontecchio AQ 10 369 8542
Prata d'Ansidonia AQ 11 496 9038
Ovindoli AQ 13 1227 10265
Barisciano AQ 13 1828 12093
Lucoli AQ 13 1011 13104
Tione degli Abruzzi AQ 13 310 13414
L'Aquila AQ 14 69753 83167
San Pio delle Camere AQ 15 661 83828
Caporciano AQ 16 230 84058
Tornimparte AQ 16 3187 87245
Massa d'Albe AQ 17 1476 88721
Santo Stefano di Sessanio AQ 17 111 88832
Carapelle Calvisio AQ 18 87 88919
Celano AQ 19 11017 99936
Castelvecchio Calvisio AQ 19 153 100089
Secinaro AQ 19 359 100448
Magliano de' Marsi AQ 19 3690 104138
Calascio AQ 20 137 104275

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of L'Aquila (69753 inhabitants)
50 Km SW of Teramo (54892 inhabitants)
58 Km W of Chieti (51815 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
64 Km E of Tivoli (56533 inhabitants)
65 Km W of Pescara (121014 inhabitants)
68 Km E of Guidonia Montecelio (88673 inhabitants)
77 Km E of Terni (111501 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
91 Km E of Roma (2864731 inhabitants)
99 Km NE of Latina (125985 inhabitants)
100 Km NE of Aprilia (73446 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.7 2009-04-23
22:52:15
42.245 13.483 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 831299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-23 22:52:15 ± 0.06
Latitude 42.2450 ± 0.0027
Longitude 13.4830 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 831299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 357
Semi-minor axis of confidence ellipse (meter) 244
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
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 72
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64751
Number of stations at which the event was observed 59
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 831299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:45:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2009-04-23T22:52:37.04 10.0 undecidable manual Sg 0 0 0
IV.LPEL.HHZ. 2009-04-23T22:52:34.46 0.3 undecidable manual Sn 111 61.5939 0.071 71
IV.SACS.HHE. 2009-04-23T22:52:34.43 10.0 undecidable manual Sg 0 0 0
IV.MODR.HHN. 2009-04-23T22:52:31.80 10.0 undecidable manual Sg 0 0 0
IV.STR4.BHZ. 2009-04-23T22:52:29.97 10.0 undecidable manual Pn 0 0 0
IV.TERO.HHN. 2009-04-23T22:52:29.75 0.6 undecidable manual Sn 13 43.0236 0.324 47
IV.INTR.HHN. 2009-04-23T22:52:29.37 0.6 undecidable manual Sn 127 43.3233 -0.125 49
IV.CING.HHN. 2009-04-23T22:52:28.75 10.0 undecidable manual Sg 0 0 0
IV.NRCA.SHZ. 2009-04-23T22:52:27.92 0.3 undecidable manual Pg 335 71.8725 0.062 70
IV.VCEL.EHE. 2009-04-23T22:52:27.27 0.6 undecidable manual Sn 60 33.6441 0.348 47
IV.CAMP.HHE. 2009-04-23T22:52:26.27 0.6 undecidable manual Sn 349 32.8449 -0.422 46
IV.LPEL.HHZ. 2009-04-23T22:52:26.06 0.1 undecidable manual Pg 111 61.5939 -0.215 92
IV.MCRV.HHN. 2009-04-23T22:52:26.64 10.0 undecidable manual Pn 0 0 0
IV.FIAM.HHZ. 2009-04-23T22:52:25.98 0.6 undecidable manual Sg 275 30.1476 -0.014 51
IV.LNSS.HHN. 2009-04-23T22:52:25.35 0.6 undecidable manual Pg 318 53.8017 0.288 46
IV.FRES.HHE. 2009-04-23T22:52:25.45 10.0 undecidable manual Pn 0 0 0
IV.GUAR.HHZ. 2009-04-23T22:52:24.62 0.3 undecidable manual Pg 196 51.9036 -0.167 71
IV.PTQR.SHZ. 2009-04-23T22:52:24.70 0.3 undecidable manual Sg 195 25.6521 -0.03 77
IV.CERT.HHZ. 2009-04-23T22:52:24.90 0.1 undecidable manual Pg 232 52.8027 -0.011 98
IV.INTR.HHN. 2009-04-23T22:52:23.40 0.3 undecidable manual Pg 127 43.3233 -0.051 74
IV.VVLD.HHE. 2009-04-23T22:52:23.42 0.3 undecidable manual Pg 164 43.2234 -0.019 74
IV.TERO.HHN. 2009-04-23T22:52:23.25 0.1 undecidable manual Pg 13 43.0236 -0.162 96
IV.LATE.HHE. 2009-04-23T22:52:22.30 10.0 undecidable manual Pn 0 0 0
IV.VCEL.EHE. 2009-04-23T22:52:21.94 0.3 undecidable manual Pg 60 33.6441 -0.03 76
IV.FG5.SHZ. 2009-04-23T22:52:21.31 10.0 undecidable manual Pn 0 0 0
IV.FIAM.HHZ. 2009-04-23T22:52:21.52 0.1 undecidable manual Pg 275 30.1476 0.096 100
IV.CAMP.HHE. 2009-04-23T22:52:21.82 0.3 undecidable manual Pg 349 32.8449 -0.015 76
IV.BADI.EHZ. 2009-04-23T22:52:21.34 10.0 undecidable manual Pn 0 0 0
IV.PTQR.SHZ. 2009-04-23T22:52:20.85 0.1 undecidable manual Pg 195 25.6521 0.149 100
MN.AQU.HHZ. 2009-04-23T22:52:20.64 0.3 undecidable manual Sg 331 13.7751 -0.42 72
IV.STR3.BHE. 2009-04-23T22:52:20.29 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHN. 2009-04-23T22:52:20.01 10.0 undecidable manual Pn 0 0 0
IV.SACS.HHE. 2009-04-23T22:52:18.50 10.0 undecidable manual Pn 0 0 0
MN.AQU.HHZ. 2009-04-23T22:52:18.94 0.1 undecidable manual Pg 331 13.7751 0.356 97
IV.FSSB.SHZ. 2009-04-23T22:52:18.10 10.0 undecidable manual Pn 0 0 0
IV.PIEI.HHE. 2009-04-23T22:52:17.68 10.0 undecidable manual Pn 0 0 0
IV.ARVD.HHZ. 2009-04-23T22:52:16.37 10.0 undecidable manual Pn 0 0 0
IV.FG2.SHZ. 2009-04-23T22:52:15.47 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHN. 2009-04-23T22:52:14.14 10.0 undecidable manual Pg 0 0 0
IV.MODR.HHN. 2009-04-23T22:52:14.97 10.0 undecidable manual Pn 0 0 0
IV.MGAB.HHZ. 2009-04-23T22:52:13.86 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-23T22:52:13.30 10.0 undecidable manual Pg 0 0 0
IV.BSSO.HHZ. 2009-04-23T22:52:13.97 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHN. 2009-04-23T22:52:12.36 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-23T22:52:11.11 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHN. 2009-04-23T22:52:10.85 10.0 undecidable manual Pg 0 0 0
IV.CAFR.HHE. 2009-04-23T22:52:10.27 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-23T22:52:10.97 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-23T22:52:09.15 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-23T22:52:09.43 10.0 undecidable manual Sg 0 0 0
IV.ASSB.HHN. 2009-04-23T22:52:09.14 10.0 undecidable manual Pg 0 0 0
IV.TRTR.HHZ. 2009-04-23T22:52:06.09 10.0 undecidable manual Pg 0 0 0
IV.MA9.HHN. 2009-04-23T22:52:06.05 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2009-04-23T22:52:06.15 10.0 undecidable manual Pg 0 0 0
IV.LAV9.SHZ. 2009-04-23T22:52:05.40 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHZ. 2009-04-23T22:52:05.01 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHE. 2009-04-23T22:52:05.42 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-23T22:52:04.73 10.0 undecidable manual Pg 0 0 0
IV.CERA.HHZ. 2009-04-23T22:52:04.01 10.0 undecidable manual Pg 0 0 0
IV.GUMA.HHZ. 2009-04-23T22:52:04.71 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHZ. 2009-04-23T22:52:04.34 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHZ. 2009-04-23T22:52:03.45 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHE. 2009-04-23T22:52:02.00 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-23T22:52:02.46 10.0 undecidable manual Pg 0 0 0
IV.RMP.HHZ. 2009-04-23T22:52:02.90 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHZ. 2009-04-23T22:52:00.03 10.0 undecidable manual Pg 0 0 0
IV.MTCE.HHZ. 2009-04-23T22:51:59.65 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-23T22:51:59.61 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHN. 2009-04-23T22:51:59.68 10.0 undecidable manual Pg 0 0 0
IV.SOR.HHZ. 2009-04-23T22:51:47.63 10.0 undecidable manual Pg 0 0 0
SI.ROSI.BHE. 2009-04-23T22:51:44.70 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHN. 2009-04-23T22:51:25.01 10.0 undecidable manual Pg 0 0 0
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