Earthquake with magnitude of ML 1.7 on date 30-01-2020 and time 01:46:17 (UTC) in region 2 km NE Collepardo (FR)

A magnitude ML 1.7 earthquake occured in region: 2 km NE Collepardo (FR), on

  • 30-01-2020 01:46:17 (UTC)
  • 30-01-2020 02:46:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.78, 13.38 at 7 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
Collepardo FR 2 968 968
Vico nel Lazio FR 3 2234 3202
Guarcino FR 6 1623 4825
Alatri FR 7 28952 33777
Trivigliano FR 9 1705 35482
Fumone FR 9 2102 37584
Torre Cajetani FR 10 1376 38960
Veroli FR 10 20560 59520
Morino AQ 12 1448 60968
Filettino FR 13 565 61533
San Vincenzo Valle Roveto AQ 13 2347 63880
Fiuggi FR 14 10536 74416
Civita d'Antino AQ 14 979 75395
Trevi nel Lazio FR 14 1822 77217
Ferentino FR 14 21213 98430
Balsorano AQ 15 3569 101999
Civitella Roveto AQ 16 3268 105267
Frosinone FR 16 46323 151590
Torrice FR 17 4816 156406
Boville Ernica FR 17 8737 165143
Acuto FR 17 1920 167063
Castelliri FR 18 3454 170517
Canistro AQ 18 995 171512
Ripi FR 19 5270 176782
Anagni FR 19 21464 198246
Monte San Giovanni Campano FR 19 12929 211175
Isola del Liri FR 20 11715 222890

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km E of Velletri (53303 inhabitants)
52 Km E of Tivoli (56533 inhabitants)
53 Km NE of Latina (125985 inhabitants)
59 Km E of Guidonia Montecelio (88673 inhabitants)
64 Km S of L'Aquila (69753 inhabitants)
64 Km E of Aprilia (73446 inhabitants)
73 Km NE of Anzio (54211 inhabitants)
74 Km E of Pomezia (62966 inhabitants)
75 Km E of Roma (2864731 inhabitants)
91 Km SW of Chieti (51815 inhabitants)
95 Km E of Fiumicino (78395 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2020-01-30
01:46:17
41.78 13.38 7 2020-01-30
01:54:15
Sala Sismica INGV-Roma 76014261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-30 01:46:17 ± 0.24
Latitude 41.78 ± 0.02
Longitude 13.38 ± 0.01
Depth (km) 7 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76014261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1700
Semi-minor axis of confidence ellipse (meter) 1180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 1700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 76014261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-30 01:54:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CPOZ.HHZ. 2020-01-30T01:46:37.51 3.0 positive manual P -0.83 0
IV.VIVA.HHZ. 2020-01-30T01:46:35.32 0.6 undecidable manual S 266 0.456 50 0.93 38
IV.LAV9.HHZ. 2020-01-30T01:46:35.92 0.3 undecidable manual S 259 0.5189 50 -0.33 69
IV.VAGA.HHZ. 2020-01-30T01:46:34.08 3.0 negative manual P 1.4 0
IV.CERT.HHZ. 2020-01-30T01:46:31.19 1.0 undecidable manual S 300 0.3417 100 0.3 24
IV.LAV9.HHZ. 2020-01-30T01:46:29.83 0.1 undecidable manual P 259 0.5189 50 1.5 55
IV.VIVA.HHZ. 2020-01-30T01:46:28.00 0.1 undecidable manual P 266 0.456 50 0.74 82
IV.PTQR.HHZ. 2020-01-30T01:46:27.47 0.6 undecidable manual S 3 0.2419 105 0.33 49
IV.VVLD.HHZ. 2020-01-30T01:46:26.18 0.6 undecidable manual S 64 0.2014 107 0.54 46
IV.INTR.HHZ. 2020-01-30T01:46:26.60 3.0 negative manual P -0.09 0
IV.LRP.EHZ. 2020-01-30T01:46:25.43 0.6 undecidable manual S 131 0.2032 107 -0.27 50
IV.CERT.HHZ. 2020-01-30T01:46:24.48 0.1 undecidable manual P 300 0.3417 100 -0.76 83
IV.POFI.HHZ. 2020-01-30T01:46:23.01 3.0 positive manual P -0.75 0
IV.PTQR.HHZ. 2020-01-30T01:46:22.97 1.0 undecidable manual P 3 0.2419 105 -0.1 25
IV.VVLD.HHZ. 2020-01-30T01:46:21.50 1.0 undecidable manual P 64 0.2014 107 -0.7 22
IV.LRP.EHZ. 2020-01-30T01:46:21.51 1.0 undecidable manual P 131 0.2032 107 -0.73 22
IV.GUAR.HHZ. 2020-01-30T01:46:20.06 0.1 undecidable manual S 286 0.0531 140 -0.62 93
IV.GUAR.HHZ. 2020-01-30T01:46:18.98 0.1 undecidable manual P 286 0.0531 140 -0.36 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHN. ML:0 0.00097108655 1.82 AML other m 2020-01-30T01:46:39.51
IV.CERT.HHE. ML:0 0.0001488689 0.46 AML other m 2020-01-30T01:46:32.11
IV.VIVA.HHE. ML:0 0.00021133805 0.24 AML other m 2020-01-30T01:46:39.13
IV.VIVA.HHN. ML:0 0.00026148395 0.34 AML other m 2020-01-30T01:46:40.34
IV.GUAR.HHE. ML:0 0.0042309415 0.24 AML other m 2020-01-30T01:46:20.28
IV.GUAR.HHN. ML:0 0.0051055975 0.18 AML other m 2020-01-30T01:46:20.62
IV.VVLD.HHE. ML:1.4 0.00016521654 0.24 AML other m 2020-01-30T01:46:26.43
IV.VVLD.HHN. ML:1.5 0.000202825 0.34 AML other m 2020-01-30T01:46:29.63
IV.VVLD.HNE. ML:1.4 0.00016039205 0.2504 AML other m 2020-01-30T01:46:26.44
IV.VVLD.HNN. ML:1.6 0.0002483591 0.36 AML other m 2020-01-30T01:46:29.64
IV.LRP.EHE. ML:1.6 0.0002680896 0.18 AML other m 2020-01-30T01:46:25.99
IV.LRP.EHN. ML:1 6.50578E-5 0.2 AML other m 2020-01-30T01:46:26.32
IV.POFI.HHE. ML:1.2 7.9760975E-5 0.36 AML other m 2020-01-30T01:46:33.07
IV.POFI.HHN. ML:1 6.171046E-5 0.36 AML other m 2020-01-30T01:46:29.93
IV.POFI.HNE. ML:1.8 0.00032477185 0.8504 AML other m 2020-01-30T01:46:32.63
IV.POFI.HNN. ML:1.7 0.000261393115 0.66 AML other m 2020-01-30T01:46:32.61
IV.INTR.HHE. ML:1.5 8.140002E-5 0.4 AML other m 2020-01-30T01:46:39.07
IV.INTR.HHN. ML:1.6 9.6946595E-5 0.32 AML other m 2020-01-30T01:46:35.87
IV.LAV9.HHE. ML:2.1 0.00026043725 0.34 AML other m 2020-01-30T01:46:43.90
IV.LAV9.HHN. ML:2 0.00024000561 0.36 AML other m 2020-01-30T01:46:45.58
IV.LAV9.HNE. ML:2.7 0.00113534135 1.28 AML other m 2020-01-30T01:46:53.23
IV.LAV9.HNN. ML:2.1 0.000272603235 0.4296 AML other m 2020-01-30T01:46:45.57
IV.VAGA.HNE. ML:1.6 5.424175E-5 1.38 AML other m 2020-01-30T01:46:47.30
IV.VAGA.HNN. ML:1.7 7.176001E-5 1.58 AML other m 2020-01-30T01:47:11.70
IV.VAGA.HHE. ML:1.6 5.7420905E-5 1.82 AML other m 2020-01-30T01:46:47.62
IV.VAGA.HHN. ML:1.8 8.0168775E-5 2.44 AML other m 2020-01-30T01:47:09.59
IV.CPOZ.HHE. ML:3.5 0.0023156065 1.4 AML other m 2020-01-30T01:46:46.60
IV.CPOZ.HHN. ML:3.3 0.0014269275 2.18 AML other m 2020-01-30T01:47:04.79
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download