Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 09-02-2016 and time 06:51:37 (UTC) in region 4 km S Cittareale (RI)

A magnitude ML 2.2 earthquake occured in region: 4 km S Cittareale (RI), on

  • 09-02-2016 06:51:37 (UTC)
  • 09-02-2016 07:51:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5810, 13.1610 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cittareale RI 4 482 482
Borbona RI 8 617 1099
Posta RI 8 694 1793
Montereale AQ 9 2581 4374
Amatrice RI 12 2657 7031
Capitignano AQ 13 665 7696
Cagnano Amiterno AQ 14 1369 9065
Accumoli RI 15 667 9732
Leonessa RI 16 2435 12167
Micigliano RI 17 127 12294
Barete AQ 17 737 13031
Campotosto AQ 17 542 13573
Monteleone di Spoleto PG 19 599 14172
Antrodoco RI 19 2588 16760
Pizzoli AQ 19 4326 21086
Cascia PG 20 3217 24303

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
87 Km W of Chieti (51815 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
95 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 		ML 2.2 2016-02-09
06:51:37		 42.5807 13.161 11 2016-05-17
13:17:24		 Bollettino Sismico Italiano INGV 23624931
Reviewed
Rev100 		ML 2.1 2016-02-09
06:51:37		 42.5767 13.147 11 2016-02-09
08:16:22		 Sala Sismica INGV-Roma 23429771
Reviewed
Rev100 		ML 2.1 2016-02-09
06:51:37		 42.5805 13.1508 11 2016-02-09
06:59:44		 Sala Sismica INGV-Roma 23428541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-02-09 06:51:37 ± 0.05
Latitude 42.5807 ± 0.0027
Longitude 13.1610 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 23624931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 321
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.83817
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 23624931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-02-26 11:00:35

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 23429771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-02-09 08:16:22

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 23428541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-02-09 06:59:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2016-02-09T06:51:57.85 0.6 undecidable manual S 322 65.5899 50 0.03 46
IV.VCEL.EHZ. 2016-02-09T06:51:56.55 0.6 undecidable manual S 110 59.2962 50 0.4 43
IV.CSP1.EHZ. 2016-02-09T06:51:55.92 0.3 undecidable manual S 4 56.7987 50 0.43 64
IV.GUMA.HHZ. 2016-02-09T06:51:55.45 0.6 undecidable manual S 15 55.3002 50 0.36 44
IV.MOMA.HHZ. 2016-02-09T06:51:55.08 0.3 undecidable manual S 297 54.2013 50 0.3 66
IV.CESX.HHZ. 2016-02-09T06:51:53.27 0.3 undecidable manual S 274 47.0196 50 0.4 66
IV.FDMO.HHZ. 2016-02-09T06:51:53.77 0.3 undecidable manual S 353 50.9157 50 -0.15 69
IV.MGAB.HHZ. 2016-02-09T06:51:53.75 0.6 undecidable manual P 294 93.0402 50 0.14 43
IV.GIGS.HHZ. 2016-02-09T06:51:49.77 0.3 undecidable manual S 113 36.5412 50 -0.3 69
IV.SRES.HHN. 2016-02-09T06:51:49.79 1.0 undecidable manual P 235 65.5899 50 0.41 21
IV.ASSB.HHZ. 2016-02-09T06:51:49.62 0.3 undecidable manual P 322 65.5899 50 0.24 66
IV.FIAM.HHZ. 2016-02-09T06:51:49.66 0.3 undecidable manual S 186 34.8429 50 0.03 73
IV.CERT.HHE. 2016-02-09T06:51:49.89 0.6 undecidable manual P 192 71.5728 50 -0.42 42
IV.TERO.HHZ. 2016-02-09T06:51:49.78 0.3 undecidable manual S 82 36.4413 50 -0.28 69
IV.CSP1.EHZ. 2016-02-09T06:51:48.03 0.1 undecidable manual P 4 56.7987 50 0 94
IV.VCEL.EHZ. 2016-02-09T06:51:48.84 0.6 undecidable manual P 110 59.2962 50 0.43 43
IV.GUMA.HHZ. 2016-02-09T06:51:48.04 0.1 undecidable manual P 15 55.3002 50 0.24 89
IV.OFFI.HHZ. 2016-02-09T06:51:48.56 1.0 undecidable manual P 47 58.0974 50 0.34 22
IV.FAGN.HHZ. 2016-02-09T06:51:47.13 0.6 undecidable manual P 135 49.2174 50 0.28 45
IV.MOMA.HHZ. 2016-02-09T06:51:47.63 0.3 undecidable manual P 297 54.2013 50 0.01 71
IV.NRCA.HHZ. 2016-02-09T06:51:47.41 0.3 undecidable manual S 352 28.3494 50 -0.47 67
IV.FDMO.HHZ. 2016-02-09T06:51:46.90 0.1 undecidable manual P 353 50.9157 50 -0.22 91
IV.AQT1.EHZ. 2016-02-09T06:51:46.55 0.3 undecidable manual S 27 23.9538 50 -0.18 72
IV.CESX.HHZ. 2016-02-09T06:51:46.28 0.3 undecidable manual P 274 47.0196 50 -0.24 68
IV.CAMP.HHZ. 2016-02-09T06:51:45.84 0.3 undecidable manual S 104 20.868 50 -0.05 74
IV.FIAM.HHZ. 2016-02-09T06:51:44.56 0.1 undecidable manual P 186 34.8429 50 -0.09 96
IV.TERO.HHZ. 2016-02-09T06:51:44.72 0.1 undecidable manual P 82 36.4413 50 -0.17 94
IV.GIGS.HHZ. 2016-02-09T06:51:44.71 0.3 undecidable manual P 113 36.5412 50 -0.19 70
IV.SMA1.EHZ. 2016-02-09T06:51:44.63 0.3 undecidable manual S 69 15.2736 126 0.26 72
IV.NRCA.HHZ. 2016-02-09T06:51:43.36 0.1 undecidable manual P 352 28.3494 50 -0.28 93
IV.LNSS.HHZ. 2016-02-09T06:51:42.68 0.3 undecidable manual S 284 10.1787 137 -0.35 71
IV.AQT1.EHZ. 2016-02-09T06:51:42.90 0.1 undecidable manual P 27 23.9538 50 -0.07 98
IV.CAMP.HHZ. 2016-02-09T06:51:42.55 0.1 undecidable manual P 104 20.868 50 0.06 99
IV.RM33.EHZ. 2016-02-09T06:51:42.73 0.3 undecidable manual S 151 9.0798 140 -0.05 76
IV.SMA1.EHZ. 2016-02-09T06:51:41.82 0.1 undecidable manual P 69 15.2736 126 0.21 97
IV.RM33.EHZ. 2016-02-09T06:51:40.82 0.1 undecidable manual P 151 9.0798 140 0.12 99
IV.LNSS.HHZ. 2016-02-09T06:51:40.75 0.1 undecidable manual P 284 10.1787 137 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.8 0.00010385 0.7 AML other m 2016-02-09T06:51:59.49
IV.ASSB.HHN. ML:2.0 0.00016849999999999998 0.38 AML other m 2016-02-09T06:52:03.76
IV.FIAM.HHN. ML:1.7 0.000216 0.44 AML other m 2016-02-09T06:51:50.57
IV.FIAM.HHE. ML:2.0 0.0004115 1.46 AML other m 2016-02-09T06:51:50.82
IV.GUMA.HHE. ML:2.5 0.000653 0.3 AML other m 2016-02-09T06:51:59.40
IV.GUMA.HHN. ML:2.3 0.0004665 0.48 AML other m 2016-02-09T06:51:57.07
IV.MOMA.HHN. ML:2.1 0.00028149999999999996 1.18 AML other m 2016-02-09T06:51:55.65
IV.MOMA.HHE. ML:2.1 0.0003175 1 AML other m 2016-02-09T06:51:57.48
IV.NRCA.HHE. ML:2.5 0.00155 0.16 AML other m 2016-02-09T06:51:47.52
IV.NRCA.HNE. ML:2.5 0.001465 0.16 AML other m 2016-02-09T06:51:47.52
IV.NRCA.HHN. ML:2.3 0.001108 0.12 AML other m 2016-02-09T06:51:48.22
IV.NRCA.HNN. ML:2.3 0.0010500000000000002 0.12 AML other m 2016-02-09T06:51:48.22
IV.RM33.HNE. ML:2.2 0.001805 0.24 AML other m 2016-02-09T06:51:44.72
IV.RM33.EHE. ML:2.2 0.0018900000000000002 0.22 AML other m 2016-02-09T06:51:44.72
IV.RM33.EHN. ML:2.4 0.0029249999999999996 0.34 AML other m 2016-02-09T06:51:42.95
IV.RM33.HNN. ML:2.4 0.002875 0.34 AML other m 2016-02-09T06:51:42.95
IV.SMA1.EHN. ML:2.2 0.001435 1.28 AML other m 2016-02-09T06:51:44.82
IV.SMA1.EHE. ML:2.2 0.001575 0.6 AML other m 2016-02-09T06:51:45.42
IV.VCEL.EHE. ML:2.2 0.000336 1.38 AML other m 2016-02-09T06:52:00.01
IV.VCEL.EHN. ML:2.2 0.00030700000000000004 0.34 AML other m 2016-02-09T06:51:58.76
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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