Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 13-01-2020 and time 13:02:17 (Italy) in region Collepardo (FR)

A magnitude ML 0.9 earthquake occured in region: Collepardo (FR), on

  • 13-01-2020 12:02:17 (UTC)
  • 13-01-2020 13:02:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7650, 13.3710 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
Collepardo FR 0 968 968
Vico nel Lazio FR 3 2234 3202
Alatri FR 5 28952 32154
Guarcino FR 6 1623 33777
Fumone FR 8 2102 35879
Trivigliano FR 8 1705 37584
Veroli FR 9 20560 58144
Torre Cajetani FR 9 1376 59520
Ferentino FR 13 21213 80733
Fiuggi FR 13 10536 91269
Morino AQ 13 1448 92717
Frosinone FR 14 46323 139040
Filettino FR 15 565 139605
Trevi nel Lazio FR 15 1822 141427
San Vincenzo Valle Roveto AQ 15 2347 143774
Torrice FR 15 4816 148590
Boville Ernica FR 16 8737 157327
Civita d'Antino AQ 16 979 158306
Balsorano AQ 17 3569 161875
Acuto FR 17 1920 163795
Ripi FR 17 5270 169065
Civitella Roveto AQ 18 3268 172333
Castelliri FR 18 3454 175787
Anagni FR 18 21464 197251
Monte San Giovanni Campano FR 18 12929 210180
Isola del Liri FR 20 11715 221895
Canistro AQ 20 995 222890
Arnara FR 20 2309 225199

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km E of Velletri (53303 inhabitants)
51 Km NE of Latina (125985 inhabitants)
52 Km E of Tivoli (56533 inhabitants)
59 Km E of Guidonia Montecelio (88673 inhabitants)
63 Km E of Aprilia (73446 inhabitants)
65 Km S of L'Aquila (69753 inhabitants)
71 Km NE of Anzio (54211 inhabitants)
73 Km E of Pomezia (62966 inhabitants)
75 Km E of Roma (2864731 inhabitants)
93 Km SW of Chieti (51815 inhabitants)
94 Km E of Fiumicino (78395 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 0.9 2020-01-13
12:02:17		 41.7647 13.3712 10 2020-07-18
21:08:18		 Bollettino Sismico Italiano INGV 75538611
Reviewed
Rev100 		ML 0.9 2020-01-13
12:02:18		 41.7597 13.3803 6 2020-01-13
12:07:47		 Sala Sismica INGV-Roma 75514591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-13 12:02:17 ± 0.04
Latitude 41.7647 ± 0.0027
Longitude 13.3712 ± 0.0024
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 75538611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 327
Semi-minor axis of confidence ellipse (meter) 129
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
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) 114
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51081
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 75538611
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-14 13:23:07

ML:0.9

Field Value
Value 0.9
Uncertainty 0.7
Num. used stations 8
Type of magnitude ML
Reference to an origin 75514591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-13 12:07:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOCI.HHZ. 2020-01-13T12:03:50.66 3.0 undecidable manual Sg 13.38 0
IV.NDIM.HHZ. 2020-01-13T12:03:26.77 3.0 undecidable manual Sn 0.19 0
IV.ILLI.HHZ. 2020-01-13T12:03:09.08 3.0 undecidable manual Pn -0.36 0
CR.STON.BHZ. 2020-01-13T12:03:06.12 3.0 positive manual Pg 7.58 0
SI.KOSI.HHZ. 2020-01-13T12:03:05.91 3.0 positive manual Pn -3.81 0
IV.CRAC.EHZ. 2020-01-13T12:02:56.27 3.0 positive manual Pn 0.35 0
IV.IMOL.HNZ. 2020-01-13T12:02:39.07 3.0 negative manual Pn -2.55 0
IV.FIR.HHZ. 2020-01-13T12:02:38.55 3.0 undecidable manual Pn 0.52 0
IV.CERA.HNN. 2020-01-13T12:02:35.69 1.0 undecidable manual S 109 56.6988 50 -0.16 23
IV.INTR.HHE. 2020-01-13T12:02:34.78 0.6 undecidable manual S 58 51.9036 50 0.22 45
IV.CERT.HHE. 2020-01-13T12:02:31.01 0.3 undecidable manual S 303 38.1285 50 0.12 71
IV.RCAV.EHZ. 2020-01-13T12:02:30.42 0.3 undecidable manual S 285 36.4413 50 -0.01 73
IV.CERA.HNN. 2020-01-13T12:02:28.38 1.0 undecidable manual P 109 56.6988 50 0.08 23
IV.POFI.HHZ. 2020-01-13T12:02:28.43 0.3 undecidable manual S 100 28.6491 50 0.05 73
IV.INTR.HHE. 2020-01-13T12:02:27.66 1.0 undecidable manual P 58 51.9036 50 0.11 23
IV.GIUL.HHZ. 2020-01-13T12:02:27.28 0.3 undecidable manual S 203 24.8529 112 0.04 74
IV.VVLD.HHZ. 2020-01-13T12:02:27.02 0.3 undecidable manual S 61 23.8539 112 0.09 73
IV.LRP.EHZ. 2020-01-13T12:02:26.15 0.3 undecidable manual S 126 22.0668 114 -0.22 72
IV.RCAV.EHZ. 2020-01-13T12:02:25.02 0.1 undecidable manual P 285 36.4413 50 -0.15 94
IV.CERT.HHE. 2020-01-13T12:02:25.36 0.1 undecidable manual P 303 38.1285 50 -0.08 95
IV.POFI.HHZ. 2020-01-13T12:02:23.63 0.3 undecidable manual P 100 28.6491 50 -0.35 69
IV.GIUL.HHZ. 2020-01-13T12:02:23.55 0.1 undecidable manual P 203 24.8529 112 0.22 95
IV.VVLD.HHZ. 2020-01-13T12:02:23.20 0.3 undecidable manual P 61 23.8539 112 0.05 74
IV.LRP.EHZ. 2020-01-13T12:02:22.92 0.1 undecidable manual P 126 22.0668 114 0.1 98
IV.GUAR.HHZ. 2020-01-13T12:02:21.72 0.3 undecidable manual S 304 5.8941 149 -0.23 73
IV.GUAR.HHZ. 2020-01-13T12:02:20.39 0.1 positive manual P 304 5.8941 149 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUAR.HHN. ML:1.8 0.0009565 0.32 AML other m 2020-01-13T12:02:22.48
IV.GUAR.HHE. ML:1.8 0.0009805 0.56 AML other m 2020-01-13T12:02:22.99
IV.LRP.EHN. ML:0.6 0.000024750000000000002 0.24 AML other m 2020-01-13T12:02:26.77
IV.LRP.EHE. ML:1.2 0.00010200000000000001 0.96 AML other m 2020-01-13T12:02:27.94
IV.GIUL.HHN. ML:0.9 0.0000451 0.42 AML other m 2020-01-13T12:02:27.55
IV.GIUL.HHE. ML:0.8 0.000038 0.42 AML other m 2020-01-13T12:02:28.71
IV.POFI.HHN. ML:0.7 0.000022499999999999998 0.42 AML other m 2020-01-13T12:02:30.08
IV.POFI.HHE. ML:0.5 0.000017100000000000002 0.54 AML other m 2020-01-13T12:02:31.71
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