Earthquake with magnitude of ML 1.5 on date 21-05-2009 and time 08:10:56 (Italy) in region 9 km E Pizzoli (AQ)

A magnitude ML 1.5 earthquake occured in region: 9 km E Pizzoli (AQ), on

  • 21-05-2009 06:10:56 (UTC)
  • 21-05-2009 08:10:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4750, 13.3900 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 9 4326 4326
Capitignano AQ 9 665 4991
Barete AQ 9 737 5728
Campotosto AQ 9 542 6270
Crognaleto TE 11 1297 7567
Montereale AQ 13 2581 10148
Cagnano Amiterno AQ 14 1369 11517
L'Aquila AQ 14 69753 81270
Pietracamela TE 15 271 81541
Fano Adriano TE 15 296 81837
Scoppito AQ 16 3727 85564
Amatrice RI 19 2657 88221
Cortino TE 19 656 88877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of L'Aquila (69753 inhabitants)
33 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
65 Km W of Chieti (51815 inhabitants)
68 Km W of Pescara (121014 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km SE of Foligno (57155 inhabitants)
99 Km NE of Roma (2864731 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 1.7
ML 1.5
2009-05-21
06:10:56
42.475 13.39 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 873959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-21 06:10:56 ± 0.21
Latitude 42.4750 ± 0.0126
Longitude 13.3900 ± 0.0134
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 873959

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1583
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 1780.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 873959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:35:54

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 873959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:35:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHE. 2009-05-21T06:11:11.79 0.1 undecidable manual Sg 331 45.621 0.238 93
IV.VCEL.EHN. 2009-05-21T06:11:10.24 0.1 undecidable manual Sg 104 37.9287 0.741 81
IV.LNSS.HHE. 2009-05-21T06:11:07.90 0.1 undecidable manual Sg 296 31.8459 0.024 100
IV.FAGN.HHZ. 2009-05-21T06:11:06.94 0.1 undecidable manual Sg 146 28.1496 0.054 100
IV.NRCA.HHE. 2009-05-21T06:11:05.07 0.1 undecidable manual Pg 331 45.621 -0.172 95
IV.TERO.HHZ. 2009-05-21T06:11:05.04 0.1 undecidable manual Sg 47 23.9538 -0.559 90
IV.VCEL.EHN. 2009-05-21T06:11:04.06 0.1 undecidable manual Pg 104 37.9287 0.002 99
IV.FAGN.HHZ. 2009-05-21T06:11:02.03 0.1 undecidable manual Pg 146 28.1496 -0.52 90
IV.LNSS.HHE. 2009-05-21T06:11:02.89 0.1 undecidable manual Pg 296 31.8459 -0.231 96
IV.TERO.HHZ. 2009-05-21T06:11:01.47 0.1 undecidable manual Pg 47 23.9538 -0.335 95
IV.CAMP.HHZ. 2009-05-21T06:11:01.24 0.1 undecidable manual Sg 13 6.8931 0.463 95
IV.CAMP.HHZ. 2009-05-21T06:10:59.37 0.1 negative manual Pg 13 6.8931 0.347 98
IV.BULG.HHN. 2009-05-21T06:10:38.59 10.0 undecidable manual Pg 0 0 0
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