Earthquake with magnitude of ML 0.8 on date 22-03-2017 and time 08:59:59 (Italy) in region 8 km SE Norcia (PG)

A magnitude ML 0.8 earthquake occured in region: 8 km SE Norcia (PG), on

  • 22-03-2017 07:59:59 (UTC)
  • 22-03-2017 08:59:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7390, 13.1570 at 13 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
Norcia PG 8 4957 4957
Accumoli RI 9 667 5624
Cascia PG 12 3217 8841
Arquata del Tronto AP 12 1178 10019
Cittareale RI 13 482 10501
Amatrice RI 16 2657 13158
Castelsantangelo sul Nera MC 17 281 13439
Poggiodomo PG 18 117 13556
Preci PG 18 724 14280
Montegallo AP 19 523 14803
Monteleone di Spoleto PG 19 599 15402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
92 Km W of Pescara (121014 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
93 Km W of Chieti (51815 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 0.8 2017-03-22
07:59:59
42.7387 13.1573 13 2017-03-22
08:22:40
Sala Sismica INGV-Roma 42774741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-22 07:59:59 ± 0.07
Latitude 42.7387 ± 0.0027
Longitude 13.1573 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42774741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 367
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.34804
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:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 42774741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-22 08:22:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2017-03-22T08:00:12.10 0.6 undecidable manual S 109 38.628 95 0.08 48
IV.RM33.EHZ. 2017-03-22T08:00:08.80 0.6 undecidable manual S 170 25.9518 100 0.15 48
IV.MC2.EHZ. 2017-03-22T08:00:07.10 0.6 undecidable manual S 8 19.3695 107 0.16 49
IV.MMO1.EHZ. 2017-03-22T08:00:07.80 0.6 undecidable manual S 38 22.5552 103 0.03 50
IV.TERO.HHZ. 2017-03-22T08:00:06.29 0.1 undecidable manual P 109 38.628 95 -0.32 91
IV.T1216.EHZ. 2017-03-22T08:00:06.80 0.6 undecidable manual S 326 20.2686 106 -0.38 46
IV.T1219.EHZ. 2017-03-22T08:00:06.62 3.0 undecidable manual P 37.3293 0.21 0
IV.T1217.EHZ. 2017-03-22T08:00:06.70 0.6 undecidable manual S 261 18.6702 109 -0.07 50
IV.T1245.HHZ. 2017-03-22T08:00:05.50 0.3 undecidable manual S 11 13.2756 122 0.02 76
IV.MMO1.EHZ. 2017-03-22T08:00:04.19 0.1 undecidable manual P 38 22.5552 103 0.03 100
IV.T1218.EHZ. 2017-03-22T08:00:04.40 0.6 undecidable manual S 204 8.3805 139 -0.07 51
IV.T1241.EHZ. 2017-03-22T08:00:04.59 1.0 undecidable manual P 60 25.8519 100 -0.06 25
IV.T1212.EHZ. 2017-03-22T08:00:04.50 0.6 undecidable manual S 279 9.2796 136 -0.14 50
IV.RM33.EHZ. 2017-03-22T08:00:04.73 0.6 undecidable manual P 170 25.9518 100 0.06 49
IV.T1217.EHZ. 2017-03-22T08:00:03.61 0.3 undecidable manual P 261 18.6702 109 0.03 75
IV.MC2.EHZ. 2017-03-22T08:00:03.83 0.3 undecidable manual P 8 19.3695 107 0.15 74
IV.T1216.EHZ. 2017-03-22T08:00:03.87 0.6 undecidable manual P 326 20.2686 106 0.05 50
IV.T1245.HHZ. 2017-03-22T08:00:02.94 0.1 undecidable manual P 11 13.2756 122 0.1 100
IV.T1218.EHZ. 2017-03-22T08:00:02.32 0.3 undecidable manual P 204 8.3805 139 0.06 76
IV.T1212.EHZ. 2017-03-22T08:00:02.38 0.3 undecidable manual P 279 9.2796 136 0.03 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.0 0.00001879374 0.1792 AML other m 2017-03-22T08:00:08.99
IV.RM33.EHE. ML:0.0 0.000029626840000000002 0.1408 AML other m 2017-03-22T08:00:09.30
IV.T1212.EHE. ML:0.0 0.00005000007 0.1728 AML other m 2017-03-22T08:00:04.91
IV.T1212.EHN. ML:0.0 0.000052296885 0.2688 AML other m 2017-03-22T08:00:04.68
IV.T1212.HNE. ML:0.0 0.00006574416999999998 0.2752 AML other m 2017-03-22T08:00:05.72
IV.T1216.EHE. ML:0.0 0.000030950350000000004 0.096 AML other m 2017-03-22T08:00:07.46
IV.T1217.EHE. ML:0.0 0.000033076375749999996 0.576 AML other m 2017-03-22T08:00:07.05
IV.T1218.HNE. ML:1.0 0.00010434490499999999 0.128 AML other m 2017-03-22T08:00:04.46
IV.T1218.EHN. ML:1.1 0.00014616215499999998 0.2112 AML other m 2017-03-22T08:00:04.52
IV.T1218.HNN. ML:1.1 0.00014828164999999998 0.192 AML other m 2017-03-22T08:00:04.61
IV.T1218.EHE. ML:0.0 0.000094033655 0.128 AML other m 2017-03-22T08:00:04.53
IV.T1241.EHE. ML:0.0 0.00001670875 0.1792 AML other m 2017-03-22T08:00:08.87
IV.T1245.HHE. ML:0.0 0.000095415205 0.1152 AML other m 2017-03-22T08:00:06.16
IV.T1245.HHN. ML:0.0 0.00009566071999999998 0.16 AML other m 2017-03-22T08:00:06.08
IV.TERO.HHE. ML:0.0 0.00001307264 0.0768 AML other m 2017-03-22T08:00:12.36
IV.TERO.HHN. ML:0.0 0.0000174392265 0.0832 AML other m 2017-03-22T08:00:12.26
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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