Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 30-12-2019 and time 06:57:48 (Italy) in region 3 km SE Cascia (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km SE Cascia (PG), on

  • 30-12-2019 05:57:48 (UTC)
  • 30-12-2019 06:57:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6920, 13.0290 at 9 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
Cascia PG 3 3217 3217
Monteleone di Spoleto PG 8 599 3816
Poggiodomo PG 8 117 3933
Norcia PG 12 4957 8890
Cittareale RI 14 482 9372
Leonessa RI 15 2435 11807
Vallo di Nera PG 16 364 12171
Scheggino PG 16 461 12632
Sant'Anatolia di Narco PG 16 564 13196
Cerreto di Spoleto PG 17 1075 14271
Accumoli RI 18 667 14938
Polino TR 19 233 15171
Posta RI 20 694 15865

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
40 Km SE of Foligno (57155 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
83 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 		ML 1.2 2019-12-30
05:57:48		 42.6922 13.0287 9 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76518501
Reviewed
Rev100 		ML 1.2 2019-12-30
05:57:48		 42.689 13.0392 9 2019-12-30
06:09:27		 Sala Sismica INGV-Roma 75105621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-30 05:57:48 ± 0.18
Latitude 42.6922 ± 0.0036
Longitude 13.0287 ± 0.0049
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76518501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 304
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24821
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 75105621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-30 06:09:27

ML:1.2

Field Value
Value 1.2
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 76518501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-14 17:07:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2019-12-30T05:57:58.73 0.6 undecidable manual S 105 25.9518 109 0.26 47
IV.MC2.EHZ. 2019-12-30T05:57:58.99 0.6 undecidable manual S 28 27.5502 108 -0.03 49
IV.T1299.HNZ. 2019-12-30T05:57:57.16 0.6 undecidable manual S 107 21.6672 112 0.08 49
IV.RM33.EHZ. 2019-12-30T05:57:57.86 0.6 undecidable manual S 143 25.3524 109 -0.42 45
IV.LATE.HHZ. 2019-12-30T05:57:56.64 3.0 undecidable manual P 0.07 0
IV.NRCA.HHZ. 2019-12-30T05:57:55.51 0.6 undecidable manual S 24 17.1717 117 -0.16 48
IV.RM33.EHZ. 2019-12-30T05:57:54.06 0.3 undecidable manual P 143 25.3524 109 -0.28 70
IV.SMA1.EHZ. 2019-12-30T05:57:54.51 0.1 undecidable manual P 105 25.9518 109 0.06 97
IV.MC2.EHZ. 2019-12-30T05:57:54.57 0.3 undecidable manual P 28 27.5502 108 -0.2 71
IV.LNSS.HHZ. 2019-12-30T05:57:53.52 0.6 undecidable manual S 175 9.9789 132 -0.07 50
IV.T1299.HNZ. 2019-12-30T05:57:53.81 0.1 undecidable manual P 107 21.6672 112 0.16 96
IV.GAVE.EHZ. 2019-12-30T05:57:53.82 0.1 undecidable manual S 270 10.9779 129 -0.04 100
IV.NRCA.HHZ. 2019-12-30T05:57:52.87 0.1 undecidable manual P 24 17.1717 117 0.04 99
IV.LNSS.HHZ. 2019-12-30T05:57:51.77 0.1 undecidable manual P 175 9.9789 132 0.14 98
IV.GAVE.EHZ. 2019-12-30T05:57:51.92 0.1 positive manual P 270 10.9779 129 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.2 0.00018099999999999998 0.52 AML other m 2019-12-30T05:57:54.28
IV.GAVE.EHN. ML:1.2 0.000191 0.28 AML other m 2019-12-30T05:57:54.14
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