Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 28-01-2020 and time 07:26:20 (Italy) in region 2 km E Cascia (PG)

A magnitude ML 1.1 earthquake occured in region: 2 km E Cascia (PG), on

  • 28-01-2020 06:26:20 (UTC)
  • 28-01-2020 07:26:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7210, 13.0410 at 10 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 2 3217 3217
Poggiodomo PG 9 117 3334
Norcia PG 9 4957 8291
Monteleone di Spoleto PG 11 599 8890
Cerreto di Spoleto PG 15 1075 9965
Cittareale RI 15 482 10447
Vallo di Nera PG 16 364 10811
Sant'Anatolia di Narco PG 17 564 11375
Scheggino PG 17 461 11836
Accumoli RI 17 667 12503
Preci PG 18 724 13227
Leonessa RI 19 2435 15662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Terni (111501 inhabitants)
38 Km SE of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
84 Km E of Viterbo (67173 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 1.1 2020-01-28
06:26:20		 42.7208 13.041 10 2020-07-18
21:08:21		 Bollettino Sismico Italiano INGV 76703521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-28 06:26:20 ± 0.05
Latitude 42.7208 ± 0.0027
Longitude 13.0410 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76703521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35523
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76703521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-01 10:13:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BERNI.HHZ. 2020-01-28T06:28:07.40 3.0 undecidable manual Sg 9.09 0
IV.MCEL.HHZ. 2020-01-28T06:27:45.46 3.0 undecidable manual Sn -0.64 0
IV.MCRV.HHZ. 2020-01-28T06:27:44.41 3.0 undecidable manual Sg 14.28 0
IV.SACR.HHZ. 2020-01-28T06:27:24.67 3.0 undecidable manual Sg 10.2 0
MN.CLTB.HHZ. 2020-01-28T06:27:21.35 3.0 negative manual Pn -5.12 0
IV.PAOL.HHZ. 2020-01-28T06:27:20.45 3.0 undecidable manual Sn 2.23 0
IV.PTRJ.HNZ. 2020-01-28T06:27:07.15 3.0 undecidable manual Sn -5.32 0
SI.BOSI.HHZ. 2020-01-28T06:27:07.22 3.0 undecidable manual Pn -1.65 0
GU.GRAM.HHZ. 2020-01-28T06:26:59.72 3.0 undecidable manual Pg 10.36 0
IV.PAOL.HHZ. 2020-01-28T06:26:57.43 3.0 undecidable manual Pg 8.48 0
IV.CADC.HNZ. 2020-01-28T06:26:56.81 3.0 negative manual Pn -2.65 0
IV.IMOL.HNZ. 2020-01-28T06:26:54.08 3.0 undecidable manual P 0.44 0
IV.PTRJ.HNZ. 2020-01-28T06:26:51.04 3.0 undecidable manual Pg 5.32 0
IV.OSSC.HNZ. 2020-01-28T06:26:46.36 3.0 undecidable manual Sn -3.37 0
IV.MOMA.HNZ. 2020-01-28T06:26:34.70 0.6 undecidable manual S 284 39.4272 50 0.63 41
IV.ARVD.HHZ. 2020-01-28T06:26:33.05 3.0 undecidable manual P 0
IV.CESI.HHE. 2020-01-28T06:26:32.30 0.6 undecidable manual S 341 33.4443 50 -0.16 47
IV.RM33.EHZ. 2020-01-28T06:26:30.50 0.6 undecidable manual S 149 27.4503 50 -0.37 45
IV.SMA1.EHZ. 2020-01-28T06:26:30.60 0.6 undecidable manual S 113 26.0517 50 0.11 48
IV.MC2.EHZ. 2020-01-28T06:26:30.00 0.6 undecidable manual S 30 24.3534 113 0 49
IV.T1299.HNN. 2020-01-28T06:26:29.30 0.3 undecidable manual S 116 21.867 115 0.07 73
IV.MOMA.HNZ. 2020-01-28T06:26:28.46 0.3 undecidable manual P 284 39.4272 50 -0.03 71
IV.FOSV.EHZ. 2020-01-28T06:26:28.30 3.0 undecidable manual S 0
IV.CESI.HHE. 2020-01-28T06:26:27.43 0.3 undecidable manual P 341 33.4443 50 -0.13 71
IV.MC2.EHZ. 2020-01-28T06:26:26.22 0.6 undecidable manual P 30 24.3534 113 0.08 48
IV.LNSS.HHZ. 2020-01-28T06:26:26.60 0.1 undecidable manual S 180 13.0758 128 0 100
IV.NRCA.HHZ. 2020-01-28T06:26:26.50 0.6 undecidable manual S 26 13.875 126 -0.31 47
IV.RM33.EHZ. 2020-01-28T06:26:26.43 0.1 undecidable manual P 149 27.4503 50 -0.21 93
IV.SMA1.EHZ. 2020-01-28T06:26:26.50 0.3 undecidable manual P 113 26.0517 50 0.08 72
IV.GAVE.EHZ. 2020-01-28T06:26:26.10 0.3 undecidable manual S 255 12.3765 129 -0.3 71
IV.T1299.HNN. 2020-01-28T06:26:25.81 0.1 undecidable manual P 116 21.867 115 0.12 96
IV.FOSV.EHZ. 2020-01-28T06:26:25.10 3.0 undecidable manual P 0
IV.GAVE.EHZ. 2020-01-28T06:26:24.15 0.1 undecidable manual P 255 12.3765 129 0.09 98
IV.LNSS.HHZ. 2020-01-28T06:26:24.31 0.1 undecidable manual P 180 13.0758 128 0.14 97
IV.NRCA.HHZ. 2020-01-28T06:26:24.41 0.1 undecidable manual P 26 13.875 126 0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.4 0.000223999 0.1888 AML other m 2020-01-28T06:26:26.92
IV.LNSS.HHE. ML:1.2 0.00017291495 0.0992 AML other m 2020-01-28T06:26:26.78
IV.NRCA.HHE. ML:1.3 0.00021776385 0.1792 AML other m 2020-01-28T06:26:26.83
IV.LNSS.HNE. ML:1.2 0.00017191265 0.1184 AML other m 2020-01-28T06:26:26.84
IV.LNSS.HHN. ML:1.3 0.00021016 0.2208 AML other m 2020-01-28T06:26:27.01
IV.LNSS.HNN. ML:1.3 0.00020260485 0.2112 AML other m 2020-01-28T06:26:27.01
IV.GAVE.EHN. ML:1.0 0.00012359464 0.08 AML other m 2020-01-28T06:26:27.87
IV.NRCA.HHN. ML:1.1 0.0001215 0.62 AML other m 2020-01-28T06:26:28.56
IV.GAVE.HNE. ML:1.1 0.00014433635 0.2912 AML other m 2020-01-28T06:26:28.27
IV.GAVE.EHE. ML:1.1 0.0001505 1.04 AML other m 2020-01-28T06:26:28.79
IV.RM33.EHN. ML:0.7 0.000027354705 0.16 AML other m 2020-01-28T06:26:32.22
IV.RM33.EHE. ML:0.8 0.000029143194999999995 0.1984 AML other m 2020-01-28T06:26:33.35
IV.SMA1.EHE. ML:0.8 0.00003898428 0.3168 AML other m 2020-01-28T06:26:35.00
IV.SMA1.EHN. ML:0.9 0.000045691034999999996 0.3616 AML other m 2020-01-28T06:26:35.16
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