Earthquake with magnitude of ML 0.4 on date 22-05-2011 and time 07:49:36 (Italy) in region 3 km NE Lucoli (AQ)

A magnitude ML 0.4 earthquake occured in region: 3 km NE Lucoli (AQ), on

  • 22-05-2011 05:49:36 (UTC)
  • 22-05-2011 07:49:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.31, 13.36 at 8 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
Lucoli AQ 3 1011 1011
L'Aquila AQ 5 69753 70764
Tornimparte AQ 6 3187 73951
Ocre AQ 10 1167 75118
Fossa AQ 11 721 75839
Scoppito AQ 11 3727 79566
Rocca di Cambio AQ 13 533 80099
Sant'Eusanio Forconese AQ 14 394 80493
Poggio Picenze AQ 15 1136 81629
Pizzoli AQ 15 4326 85955
Villa Sant'Angelo AQ 15 424 86379
San Demetrio ne' Vestini AQ 16 1854 88233
Barete AQ 17 737 88970
Borgorose RI 17 4591 93561
Rocca di Mezzo AQ 17 1526 95087
Fagnano Alto AQ 19 418 95505
Barisciano AQ 19 1828 97333
Cagnano Amiterno AQ 20 1369 98702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SW of L'Aquila (69753 inhabitants)
48 Km SW of Teramo (54892 inhabitants)
60 Km NE of Tivoli (56533 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km E of Terni (111501 inhabitants)
66 Km W of Chieti (51815 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
86 Km NE of Roma (2864731 inhabitants)
90 Km SE of Foligno (57155 inhabitants)
99 Km NE of Aprilia (73446 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
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 (http://www.haisentitoilterremoto.it/) 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
Bulletin
Rev1000
Md 1.5
ML 0.4
2011-05-22
05:49:36
42.31 13.36 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1217069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-22 05:49:36 ± 0.29
Latitude 42.31 ± 0.02
Longitude 13.36 ± 0.02
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1217069

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2526
Semi-minor axis of confidence ellipse (meter) 684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 2640.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 225
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22483
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1217069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:51:53

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1217069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:51:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTGR.SHZ. 2011-05-22T05:50:00.20 10.0 undecidable manual Pg 0 0 0
IV.RM33.EHE. 2011-05-22T05:49:46.48 0.6 undecidable manual Sg 331 0.2248 0.63 42
IV.FAGN.HHZ. 2011-05-22T05:49:43.92 0.6 undecidable manual Sg 106 0.17 0.058 49
IV.MCRV.HHZ. 2011-05-22T05:49:42.50 10.0 undecidable manual Pg 0 0 0
IV.RM33.EHE. 2011-05-22T05:49:41.96 0.3 undecidable manual Pg 331 0.2248 -0.045 73
MN.AQU.HHN. 2011-05-22T05:49:40.02 0.3 undecidable manual Sg 37 0.0522 -0.155 74
IV.FAGN.HHZ. 2011-05-22T05:49:40.93 0.3 undecidable manual Pg 106 0.17 0.072 73
IV.T0104.HHN. 2011-05-22T05:49:39.72 0.3 undecidable manual Sg 339 0.0513 -0.428 69
IV.T0104.HHN. 2011-05-22T05:49:38.65 0.1 undecidable manual Pg 339 0.0513 -0.063 100
MN.AQU.HHN. 2011-05-22T05:49:38.95 0.3 undecidable manual Pg 37 0.0522 0.22 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:0.6 3.5E-5 0.44 AML other m 2011-05-22T05:49:40.93
IV.FAGN.HHE. ML:0.6 2.5E-5 0.26 AML other m 2011-05-22T05:49:40.93
IV.RM33.EHN. ML:0.2 1.0E-5 2.24 AML other m 2011-05-22T05:49:41.96
IV.RM33.EHE. Md:1.4 12.4 END duration s
IV.MCRV.HHN. ML:0 0.000375 0.38 AML other m 2011-05-22T05:49:42.50
IV.MCRV.HHE. ML:0 0.000165 0.16 AML other m 2011-05-22T05:49:42.50
IV.MTGR.SHZ. Md:0 20 END duration s
IV.T0104.HHN. Md:1.4 13 END duration s
MN.AQU.HHN. Md:1.4 13.4 END duration s
IV.FAGN.HHZ. Md:1.6 16.8 END duration s
IV.MCRV.HHZ. Md:0 13 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download