Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 04-03-2017 and time 17:56:45 (Italy) in region 3 km SW Pizzoli (AQ)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Pizzoli (AQ), on

  • 04-03-2017 16:56:45 (UTC)
  • 04-03-2017 17:56:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4190, 13.2780 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 4326 4326
Barete AQ 4 737 5063
Scoppito AQ 6 3727 8790
Cagnano Amiterno AQ 6 1369 10159
Capitignano AQ 12 665 10824
Montereale AQ 12 2581 13405
L'Aquila AQ 12 69753 83158
Tornimparte AQ 14 3187 86345
Lucoli AQ 15 1011 87356
Borbona RI 16 617 87973
Antrodoco RI 16 2588 90561
Campotosto AQ 17 542 91103
Borgo Velino RI 18 972 92075
Micigliano RI 19 127 92202
Posta RI 19 694 92896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
74 Km W of Chieti (51815 inhabitants)
76 Km SE of Foligno (57155 inhabitants)
77 Km W of Pescara (121014 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
96 Km E of Viterbo (67173 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
Reviewed
Rev100 		ML 1.1 2017-03-04
16:56:45		 42.4188 13.2778 11 2017-03-04
17:10:26		 Sala Sismica INGV-Roma 41961951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-04 16:56:45 ± 0.09
Latitude 42.4188 ± 0.0054
Longitude 13.2778 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 41961951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 453
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44247
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 41961951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-04 17:10:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TRIV.HHZ. 2017-03-04T16:57:06.70 3.0 undecidable manual P -0.1 0
IV.T1245.HHZ. 2017-03-04T16:56:57.15 3.0 undecidable manual S 351 49.1175 50 -3.76 0
IV.TERO.HHZ. 2017-03-04T16:56:56.94 0.1 undecidable manual S 50 34.9428 50 -0.19 92
IV.T1299.EHZ. 2017-03-04T16:56:55.04 3.0 undecidable manual S 1 23.8539 50 0.86 0
IV.SMA1.EHZ. 2017-03-04T16:56:54.81 0.6 undecidable manual S 11 23.9538 50 0.61 45
IV.GIGS.HHZ. 2017-03-04T16:56:54.53 0.3 undecidable manual S 81 24.4533 50 0.2 73
IV.T1245.HHZ. 2017-03-04T16:56:54.18 0.6 undecidable manual P 351 49.1175 50 -0.12 46
IV.T0110.HHZ. 2017-03-04T16:56:53.88 1.0 undecidable manual P 117 45.9207 50 0.06 24
IV.T1212.EHZ. 2017-03-04T16:56:53.24 0.3 undecidable manual P 333 41.5251 50 0.11 73
IV.FIAM.HHZ. 2017-03-04T16:56:53.49 0.6 undecidable manual S 218 21.2676 50 0 50
IV.TERO.HHZ. 2017-03-04T16:56:52.03 0.1 undecidable manual P 50 34.9428 50 -0.09 95
IV.GIGS.HHZ. 2017-03-04T16:56:50.70 0.1 undecidable manual P 81 24.4533 50 0.2 97
IV.FIAM.HHZ. 2017-03-04T16:56:50.17 0.6 negative manual P 218 21.2676 50 0.16 49
IV.RM33.EHZ. 2017-03-04T16:56:50.19 0.6 undecidable manual S 333 11.2776 134 -0.47 47
IV.T1299.EHZ. 2017-03-04T16:56:50.45 0.6 positive manual P 1 23.8539 50 0.04 50
IV.SMA1.EHZ. 2017-03-04T16:56:50.73 0.1 undecidable manual P 11 23.9538 50 0.31 95
IV.T1247.HHZ. 2017-03-04T16:56:48.74 0.6 undecidable manual S 34 2.997 164 -0.39 50
IV.RM33.EHZ. 2017-03-04T16:56:48.45 0.1 undecidable manual P 333 11.2776 134 0.07 100
IV.T1247.HHZ. 2017-03-04T16:56:47.56 0.1 negative manual P 34 2.997 164 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:0.9 0.000049253690000000005 1.4848 AML other m 2017-03-04T16:56:53.66
IV.FIAM.HHE. ML:1.1 0.000083238825 1.1776 AML other m 2017-03-04T16:56:56.90
IV.SMA1.EHN. ML:1.4 0.00014850000000000003 0.42 AML other m 2017-03-04T16:56:58.25
IV.SMA1.EHE. ML:1.4 0.00014850000000000003 0.34 AML other m 2017-03-04T16:56:55.96
IV.T1299.EHE. ML:0.9 0.000044563 0.9216 AML other m 2017-03-04T16:56:55.55
IV.TERO.HHE. ML:0.9 0.00003063274 0.7808 AML other m 2017-03-04T16:56:58.19
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