Earthquake with magnitude of ML 1.2 on date 04-03-2017 and time 22:38:31 (Italy) in region 4 km N Cittareale (RI)

A magnitude ML 1.2 earthquake occured in region: 4 km N Cittareale (RI), on

  • 04-03-2017 21:38:31 (UTC)
  • 04-03-2017 22:38:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6540, 13.1750 at 12 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.

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
Accumoli RI 8 667 1149
Amatrice RI 10 2657 3806
Cascia PG 15 3217 7023
Montereale AQ 15 2581 9604
Posta RI 16 694 10298
Borbona RI 16 617 10915
Arquata del Tronto AP 17 1178 12093
Norcia PG 17 4957 17050
Capitignano AQ 18 665 17715
Monteleone di Spoleto PG 18 599 18314
Campotosto AQ 19 542 18856
Leonessa RI 20 2435 21291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
44 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
88 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
91 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 1.2 2017-03-04
21:38:31
42.6537 13.1748 12 2017-03-04
21:48:06
Sala Sismica INGV-Roma 41973021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-04 21:38:31 ± 0.05
Latitude 42.6537 ± 0.0018
Longitude 13.1748 ± 0.0024
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 41973021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 195
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 41973021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-04 21:48:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2017-03-04T21:38:51.74 3.0 undecidable manual P 0.36 0
IV.CSP1.EHZ. 2017-03-04T21:38:47.32 3.0 undecidable manual S -0.7 0
IV.ARRO.EHZ. 2017-03-04T21:38:43.10 0.6 undecidable manual S 256 34.4433 93 0.06 48
IV.T1215.EHZ. 2017-03-04T21:38:41.80 0.3 undecidable manual S 303 29.8479 94 -0.04 73
IV.T1211.EHZ. 2017-03-04T21:38:41.80 0.3 undecidable manual S 243 29.3484 94 0.1 72
IV.RM33.EHZ. 2017-03-04T21:38:38.10 0.6 undecidable manual S 169 16.3725 106 -0.17 49
IV.ARRO.EHZ. 2017-03-04T21:38:38.09 0.6 negative manual P 256 34.4433 93 -0.02 49
IV.T1214.EHZ. 2017-03-04T21:38:37.20 0.3 undecidable manual S 13 12.0768 120 -0.01 76
IV.LNSS.HHZ. 2017-03-04T21:38:37.30 0.6 undecidable manual S 243 12.3765 119 0.02 50
IV.SMA1.EHZ. 2017-03-04T21:38:37.50 0.3 undecidable manual S 101 13.3755 115 -0.02 76
IV.T1215.EHZ. 2017-03-04T21:38:37.32 0.1 undecidable manual P 303 29.8479 94 -0.1 96
IV.T1211.EHZ. 2017-03-04T21:38:37.22 0.1 undecidable manual P 243 29.3484 94 -0.12 96
IV.T1212.EHZ. 2017-03-04T21:38:37.80 0.6 undecidable manual S 316 15.1737 110 -0.17 49
IV.T1216.EHZ. 2017-03-04T21:38:37.27 0.1 undecidable manual P 334 29.1486 94 -0.04 98
IV.T1299.EHZ. 2017-03-04T21:38:36.40 0.6 undecidable manual S 104 8.9799 132 -0.16 49
IV.T1212.EHZ. 2017-03-04T21:38:35.25 0.1 undecidable manual P 316 15.1737 110 0.06 100
IV.RM33.EHZ. 2017-03-04T21:38:35.31 0.1 negative manual P 169 16.3725 106 -0.05 100
IV.SMA1.EHZ. 2017-03-04T21:38:35.15 1.0 positive manual P 101 13.3755 115 0.22 24
IV.T1299.EHZ. 2017-03-04T21:38:34.48 0.1 undecidable manual P 104 8.9799 132 0.1 100
IV.T1214.EHZ. 2017-03-04T21:38:34.88 0.1 undecidable manual P 13 12.0768 120 0.13 99
IV.LNSS.HHZ. 2017-03-04T21:38:34.91 0.1 positive manual P 243 12.3765 119 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.4 0.0002231206 0.1024 AML other m 2017-03-04T21:38:37.75
IV.LNSS.HHE. ML:1.4 0.00024994925 0.1664 AML other m 2017-03-04T21:38:37.59
IV.RM33.HNN. ML:1.3 0.0001484513 0.2304 AML other m 2017-03-04T21:38:38.08
IV.RM33.EHN. ML:1.2 0.00013999040000000002 0.2176 AML other m 2017-03-04T21:38:38.20
IV.RM33.HNE. ML:1.2 0.00011998704999999998 0.1664 AML other m 2017-03-04T21:38:38.79
IV.RM33.EHE. ML:1.2 0.00011500105999999998 0.1792 AML other m 2017-03-04T21:38:38.79
IV.SMA1.EHE. ML:1.5 0.0003064463 0.256 AML other m 2017-03-04T21:38:37.66
IV.SMA1.EHN. ML:1.9 0.0007073584 0.32 AML other m 2017-03-04T21:38:37.95
IV.T1211.EHE. ML:1.0 0.00004657728 0.0768 AML other m 2017-03-04T21:38:42.62
IV.T1211.EHN. ML:1.1 0.000064050365 0.1408 AML other m 2017-03-04T21:38:42.43
IV.T1212.EHN. ML:1.0 0.00009582723 0.1408 AML other m 2017-03-04T21:38:37.93
IV.T1212.EHE. ML:1.0 0.00008883263499999999 0.2048 AML other m 2017-03-04T21:38:38.00
IV.T1212.HNN. ML:1.1 0.00010051768 0.1408 AML other m 2017-03-04T21:38:37.93
IV.T1214.EHE. ML:1.2 0.00018146028 0.128 AML other m 2017-03-04T21:38:37.29
IV.T1214.HNN. ML:1.2 0.00017125984999999999 0.1024 AML other m 2017-03-04T21:38:37.63
IV.T1214.EHN. ML:1.2 0.000164194345 0.192 AML other m 2017-03-04T21:38:37.63
IV.T1214.HNE. ML:1.3 0.0002049589 0.128 AML other m 2017-03-04T21:38:37.29
IV.T1299.EHE. ML:0.8 0.000078135685 0.0768 AML other m 2017-03-04T21:38:36.55
IV.T1299.EHN. ML:1.0 0.00012739095 0.1024 AML other m 2017-03-04T21:38:36.45
IV.T1299.HNN. ML:1.2 0.0001973647 0.192 AML other m 2017-03-04T21:38:36.45
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