Earthquake 7 km E Capitignano (AQ), Magnitude Mw 4.8, 13 April 2009 time 23:14:24 (Timezone Italy)

A magnitude Mw 4.8 earthquake occured in region: 7 km E Capitignano (AQ), on

13-04-2009 21:14:24 (UTC)
13-04-2009 23:14:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4980, 13.3770 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.

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Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
Capitignano	AQ	7	665	665
Campotosto	AQ	7	542	1207
Barete	AQ	9	737	1944
Pizzoli	AQ	10	4326	6270
Crognaleto	TE	10	1297	7567
Montereale	AQ	11	2581	10148
Cagnano Amiterno	AQ	13	1369	11517
Fano Adriano	TE	15	296	11813
Pietracamela	TE	15	271	12084
L'Aquila	AQ	16	69753	81837
Amatrice	RI	16	2657	84494
Scoppito	AQ	17	3727	88221
Cortino	TE	18	656	88877

Municipalities with at least 50000 inhabitants

An earthquake occurred to

16 Km N of L'Aquila (69753 inhabitants)

32 Km SW of Teramo (54892 inhabitants)

60 Km E of Terni (111501 inhabitants)

63 Km W of Montesilvano (53738 inhabitants)

67 Km W of Chieti (51815 inhabitants)

69 Km W of Pescara (121014 inhabitants)

75 Km SE of Foligno (57155 inhabitants)

76 Km NE of Tivoli (56533 inhabitants)

77 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

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

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

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

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

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

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

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

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

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 5.0 Mw 4.8	2009-04-13 21:14:24	42.498	13.377	9	2014-10-21 12:27:13	Bollettino Sismico Italiano INGV	800229

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2009-04-13 21:14:24 ± 0.07
Latitude	42.4980 ± 0.0036
Longitude	13.3770 ± 0.0049
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	800229

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	430
Semi-minor axis of confidence ellipse (meter)	417
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	46
Circular confidence region, given by single value of horizontal uncertainty (meter)	565.7
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	54
Number of associated phases, regardless of their use for origin computation	43
Number of defining phases	43
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.39
Epicentral distance of station closest to the epicenter (degree)	0.04407
Epicentral distance of station farthest from the epicenter (degree)	1.13674
Number of stations at which the event was observed	29
Number of stations from which data was used for origin computation	29

Magnitudes information

Mw:4.8

Field	Value
Value	4.8
Uncertainty
Num. used stations
Type of magnitude	Mw
Reference to an origin	800229
Agency	INGV
Autore	TDMT Historical
Time of creation (UTC)	2014-02-04 16:05:40

ML:5.0

Field	Value
Value	5.0
Uncertainty	0.2
Num. used stations
Type of magnitude	ML
Reference to an origin	800229
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2013-01-05 15:09:31

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Residual	Weight
.LPEL.HHE.	2009-04-13T21:14:50.33	0.6	undecidable	manual	Sg	127	83.0502	0.775	37
IV.ASSB.HHZ.	2009-04-13T21:14:50.81	0.6	undecidable	manual	Sg	316	84.0492	0.987	33
IV.CESI.HHZ.	2009-04-13T21:14:46.01	0.3	undecidable	manual	Sg	326	68.0763	0.442	64
IV.INTR.HHZ.	2009-04-13T21:14:46.24	0.6	undecidable	manual	Sg	141	69.2751	0.364	43
IV.TRIV.HHE.	2009-04-13T21:14:45.96	0.6	undecidable	manual	Pg	130	126.1737	0.361	39
IV.CESX.HHE.	2009-04-13T21:14:45.54	0.6	undecidable	manual	Sg	281	66.2781	0.456	43
.FDMO.HHZ.	2009-04-13T21:14:44.68	0.6	undecidable	manual	Sg	339	64.1913	0.158	46
IV.MNS.HHZ.	2009-04-13T21:14:43.12	0.1	undecidable	manual	Sg	258	58.2972	0.158	92
IV.MGAB.HHN.	2009-04-13T21:14:43.74	0.3	undecidable	manual	Pg	294	112.8981	0.188	62
IV.GIUL.HHE.	2009-04-13T21:14:42.13	0.3	undecidable	manual	Pg	186	104.8173	-0.176	63
IV.MA9.HHN.	2009-04-13T21:14:41.57	0.6	undecidable	manual	Pg	216	100.0221	-0.01	44
IV.RDP.BHZ.	2009-04-13T21:14:41.37	0.1	undecidable	manual	Pg	214	98.4237	0.036	88
.SDI.SHZ.	2009-04-13T21:14:40.33	0.1	undecidable	manual	Pg	158	94.4388	-0.393	82
IV.RMP.HHE.	2009-04-13T21:14:40.64	0.1	undecidable	manual	Pg	216	94.3389	-0.052	88
IV.ASSB.HHZ.	2009-04-13T21:14:38.86	0.1	undecidable	manual	Pg	316	84.0492	-0.253	86
.LPEL.HHE.	2009-04-13T21:14:38.76	0.1	undecidable	manual	Pg	127	83.0502	-0.197	87
IV.VCEL.EHN.	2009-04-13T21:14:38.16	0.6	undecidable	manual	Sg	107	39.627	0.172	48
IV.GUAR.HHE.	2009-04-13T21:14:37.91	0.1	undecidable	manual	Pg	184	78.2661	-0.317	86
.VVLD.HHE.	2009-04-13T21:14:37.03	0.1	undecidable	manual	Pg	164	72.6717	-0.324	87
IV.INTR.HHZ.	2009-04-13T21:14:36.75	0.1	undecidable	manual	Pg	141	69.2751	-0.083	92
IV.CESI.HHZ.	2009-04-13T21:14:36.38	0.1	undecidable	manual	Pg	326	68.0763	-0.27	89
.FIAM.HHE.	2009-04-13T21:14:36.52	0.6	undecidable	manual	Sg	220	33.2445	0.254	47
.CERT.HHE.	2009-04-13T21:14:36.61	0.1	undecidable	manual	Pg	208	69.0753	-0.193	90
IV.LNSS.HHZ.	2009-04-13T21:14:35.41	0.3	undecidable	manual	Sg	293	29.8479	0.116	74
IV.CESX.HHE.	2009-04-13T21:14:35.97	0.1	undecidable	manual	Pg	281	66.2781	-0.405	86
.TRTR.HHE.	2009-04-13T21:14:35.76	0.1	undecidable	manual	Pg	52	55.6998	1.017	69
IV.FAGN.HHZ.	2009-04-13T21:14:35.57	0.3	undecidable	manual	Sg	147	30.8469	-0.069	74
.FDMO.HHZ.	2009-04-13T21:14:35.78	0.1	undecidable	manual	Pg	339	64.1913	-0.269	89
IV.MNS.HHZ.	2009-04-13T21:14:34.85	0.1	undecidable	manual	Pg	258	58.2972	-0.296	90
IV.OFFI.HHZ.	2009-04-13T21:14:34.97	0.1	undecidable	manual	Pg	27	54.6009	0.397	88
IV.PTQR.SHZ.	2009-04-13T21:14:34.02	0.1	positive	manual	Pg	178	52.9026	-0.29	91
IV.GAVE.SHZ.	2009-04-13T21:14:33.27	0.3	undecidable	manual	Pg	299	44.9217	0.195	70
IV.VCEL.EHN.	2009-04-13T21:14:32.20	0.1	undecidable	manual	Pg	107	39.627	-0.072	97
IV.NRCA.SHZ.	2009-04-13T21:14:32.39	0.1	positive	manual	Pg	330	42.9237	-0.381	91
IV.TERO.HHE.	2009-04-13T21:14:32.53	0.3	undecidable	manual	Sg	53	23.1546	-0.557	67
.FIAM.HHE.	2009-04-13T21:14:31.25	0.1	positive	manual	Pg	220	33.2445	-0.036	99
MN.AQU.HHZ.	2009-04-13T21:14:31.52	0.3	undecidable	manual	Sg	173	16.1727	0.623	66
IV.LNSS.HHZ.	2009-04-13T21:14:30.55	0.1	undecidable	manual	Pg	293	29.8479	-0.173	97
IV.FAGN.HHZ.	2009-04-13T21:14:30.83	0.1	undecidable	manual	Pg	147	30.8469	-0.093	98
IV.TERO.HHE.	2009-04-13T21:14:29.18	0.1	undecidable	manual	Pg	53	23.1546	-0.269	96
MN.AQU.HHZ.	2009-04-13T21:14:28.69	0.1	positive	manual	Pg	173	16.1727	0.502	92
IV.CAMP.HHN.	2009-04-13T21:14:28.07	0.3	undecidable	manual	Sg	32	4.8951	0.034	78
IV.CAMP.HHN.	2009-04-13T21:14:26.76	0.1	undecidable	manual	Pg	32	4.8951	0.226	100

TDMT - Time Domain Moment Tensor

TDMT details

Field	Value
Magnitude	Mw 4.83
Scalar Moment	2.19933E+23 dyne-cm
Computed depth	9 km
Quality	Aa
Variance Reduction	%
Double Couple	0%
CLVD	0%
ISO	0%
Model used	CIA
Mode	manual
Status	final

Moment Tensor Components

Component	Value
Mrr	-2.31955E+23
Mtt	9.27208E+22
Mpp	1.392343E+23
Mrt	-3.14611E+22
Mrp	7.988E+21
Mtp	-8.42755E+22

Nodal Planes

Name	Strike	Dip	Rake
PN1	138	49	-96
PN2	327	42	-83

Fault Plane solution

psmeca (GMT documentation)

9 138 49 -96 327 42 -83 2.19933 23 0.5 0.5

TDMT references

More info and references

PDF Solution

Download TDMT soution in PDF format

Fault Plane solutions in the area

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

Earthquake with magnitude of Mw 4.8 on date 13-04-2009 and time 23:14:24 (Italy) in region 7 km E Capitignano (AQ)