Earthquake with magnitude of M 0.4 on date 10-04-2009 and time 10:26:12 (Italy) in region 4 km NE Barete (AQ)

A magnitude M 0.4 earthquake occured in region: 4 km NE Barete (AQ), on

  • 10-04-2009 08:26:12 (UTC)
  • 10-04-2009 10:26:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.47, 13.32 at 11 km depth.

The earthquake was located by: Fonte esterna non nota.

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
Barete AQ 4 737 737
Pizzoli AQ 4 4326 5063
Capitignano AQ 6 665 5728
Cagnano Amiterno AQ 8 1369 7097
Montereale AQ 9 2581 9678
Campotosto AQ 11 542 10220
Scoppito AQ 12 3727 13947
L'Aquila AQ 15 69753 83700
Crognaleto TE 16 1297 84997
Borbona RI 16 617 85614
Amatrice RI 18 2657 88271
Posta RI 19 694 88965
Tornimparte AQ 20 3187 92152
Lucoli AQ 20 1011 93163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of L'Aquila (69753 inhabitants)
38 Km SW of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
71 Km W of Chieti (51815 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
98 Km NE of Velletri (53303 inhabitants)
100 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire ( that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
M 0.4 2009-04-10
42.47 13.32 11 2014-10-15
Fonte esterna non nota 784769
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2009-04-10 08:26:12
Latitude 42.47
Longitude 13.32
Depth (km) 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> UNKNOWN
Event type earthquake
Origin ID 784769


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


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information


Field Value
Value 0.4
Num. used stations
Type of magnitude M
Reference to an origin 784769
Agency INGV
Autore Fonte esterna non nota
Time of creation (UTC) 2014-10-15 07:39:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHN. 2009-04-10T08:26:24.14 0.1 undecidable manual Pg 0 0 0
MN.AQU.HHZ. 2009-04-10T08:26:18.02 0.1 undecidable manual Sg 0 0 0
IV.T0104.HLZ. 2009-04-10T08:26:17.80 0.1 undecidable manual Sg 0 0 0
IV.T0104.HLZ. 2009-04-10T08:26:16.57 0.1 undecidable manual Pg 0 0 0
MN.AQU.HHZ. 2009-04-10T08:26:16.80 0.1 undecidable manual Pg 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:0 0.0007 0.12 AML other m 2009-04-10T08:26:16.80
MN.AQU.HHE. ML:0 0.0007 0.12 AML other m 2009-04-10T08:26:16.80
IV.CESI.HHN. Md:0 18 END duration s
IV.CESI.HHE. ML:0 1.0E-5 0.24 AML other m 2009-04-10T08:26:24.14
IV.T0104.HLZ. Md:0 11.2 END duration s
MN.AQU.HHZ. Md:0 12.9 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download