Earthquake with magnitude of ML 1.5 on date 20-05-2009 and time 20:22:52 (Italy) in region 6 km SE Pizzoli (AQ)

A magnitude ML 1.5 earthquake occured in region: 6 km SE Pizzoli (AQ), on

  • 20-05-2009 18:22:52 (UTC)
  • 20-05-2009 20:22:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4050, 13.3560 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
Pizzoli AQ 6 4326 4326
L'Aquila AQ 7 69753 74079
Barete AQ 8 737 74816
Scoppito AQ 9 3727 78543
Cagnano Amiterno AQ 12 1369 79912
Lucoli AQ 13 1011 80923
Tornimparte AQ 13 3187 84110
Capitignano AQ 14 665 84775
Montereale AQ 16 2581 87356
Fossa AQ 16 721 88077
Ocre AQ 17 1167 89244
Campotosto AQ 17 542 89786
Poggio Picenze AQ 18 1136 90922
Sant'Eusanio Forconese AQ 19 394 91316
Crognaleto TE 19 1297 92613

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
67 Km W of Chieti (51815 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Pescara (121014 inhabitants)
81 Km SE of Foligno (57155 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 1.8
ML 1.5
2009-05-20
18:22:52
42.405 13.356 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 873119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-20 18:22:52 ± 0.08
Latitude 42.4050 ± 0.0045
Longitude 13.3560 ± 0.0085
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 873119

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 758
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 873119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:34:54

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 873119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:34:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APPI.EHN. 2009-05-20T18:23:15.10 10.0 undecidable manual Pg 0 0 0
I1.IACL.BHE. 2009-05-20T18:23:12.51 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-05-20T18:23:07.04 0.3 undecidable manual Sg 175 42.624 0.052 71
IV.NRCA.HHE. 2009-05-20T18:23:04.01 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHN. 2009-05-20T18:23:03.47 0.3 undecidable manual Sg 40 31.5462 -0.566 64
IV.FIAM.HHZ. 2009-05-20T18:23:02.23 0.3 undecidable manual Sg 232 24.753 0.068 73
IV.PTQR.SHZ. 2009-05-20T18:23:01.00 0.1 undecidable manual Pg 175 42.624 -0.033 95
IV.VCEL.EHZ. 2009-05-20T18:23:01.22 0.3 undecidable manual Pg 91 39.7269 0.634 61
IV.TERO.HHN. 2009-05-20T18:22:59.07 0.1 undecidable manual Pg 40 31.5462 -0.258 92
IV.LNSS.HHE. 2009-05-20T18:22:59.76 0.1 undecidable manual Pg 311 33.9438 0.07 95
IV.CAMP.HHZ. 2009-05-20T18:22:59.27 0.1 undecidable manual Sg 17 15.1737 0.083 98
IV.FIAM.HHZ. 2009-05-20T18:22:58.18 0.1 undecidable manual Pg 232 24.753 -0.065 97
IV.FAGN.HHZ. 2009-05-20T18:22:58.19 0.1 undecidable manual Pg 129 24.2535 0.043 98
IV.CAMP.HHZ. 2009-05-20T18:22:56.79 0.1 undecidable manual Pg 17 15.1737 0.258 95
IV.T0104.EHZ. 2009-05-20T18:22:56.42 0.1 undecidable manual Sg 196 5.1948 -0.365 94
MN.AQU.HHZ. 2009-05-20T18:22:56.86 0.6 undecidable manual Sg 146 6.7932 -0.214 49
MN.AQU.HHZ. 2009-05-20T18:22:55.47 0.1 undecidable manual Pg 146 6.7932 0.16 98
IV.T0104.EHZ. 2009-05-20T18:22:55.23 0.1 undecidable manual Pg 196 5.1948 0.083 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download