Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 07-10-2019 and time 10:25:17 (Italy) in region 2 km W Castelliri (FR)

A magnitude ML 1.0 earthquake occured in region: 2 km W Castelliri (FR), on

  • 07-10-2019 08:25:17 (UTC)
  • 07-10-2019 10:25:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6840, 13.5320 at 8 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
Castelliri FR 2 3454 3454
Isola del Liri FR 4 11715 15169
Monte San Giovanni Campano FR 5 12929 28098
Boville Ernica FR 7 8737 36835
Arpino FR 8 7262 44097
Sora FR 8 26144 70241
Fontana Liri FR 8 2953 73194
Broccostella FR 9 2741 75935
Veroli FR 9 20560 96495
Strangolagalli FR 10 2491 98986
Arce FR 11 5756 104742
Rocca d'Arce FR 12 959 105701
Ripi FR 12 5270 110971
Fontechiari FR 12 1303 112274
Santopadre FR 12 1357 113631
Torrice FR 13 4816 118447
Pescosolido FR 13 1555 120002
Balsorano AQ 14 3569 123571
Campoli Appennino FR 14 1725 125296
Posta Fibreno FR 14 1139 126435
Vicalvi FR 15 783 127218
Ceprano FR 15 8897 136115
Colfelice FR 15 1932 138047
Frosinone FR 16 46323 184370
Collepardo FR 16 968 185338
Arnara FR 16 2309 187647
Casalvieri FR 16 2698 190345
Pofi FR 16 4204 194549
Alatri FR 16 28952 223501
San Vincenzo Valle Roveto AQ 17 2347 225848
Casalattico FR 18 574 226422
Alvito FR 18 2713 229135
Roccasecca FR 19 7365 236500
Vico nel Lazio FR 19 2234 238734
Falvaterra FR 20 554 239288

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km E of Latina (125985 inhabitants)
63 Km E of Velletri (53303 inhabitants)
68 Km E of Tivoli (56533 inhabitants)
74 Km E of Aprilia (73446 inhabitants)
75 Km S of L'Aquila (69753 inhabitants)
75 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Anzio (54211 inhabitants)
86 Km E of Pomezia (62966 inhabitants)
90 Km E of Roma (2864731 inhabitants)
91 Km SW of Chieti (51815 inhabitants)
95 Km NW of Caserta (76326 inhabitants)
97 Km NW of Aversa (53047 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 1.0 2019-10-07
08:25:17		 41.6837 13.5317 8 2020-02-28
16:41:55		 Bollettino Sismico Italiano INGV 73111781
Reviewed
Rev100 		ML 1.1 2019-10-07
08:25:17		 41.6837 13.5317 8 2019-10-07
09:20:56		 Sala Sismica INGV-Roma 73105981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-07 08:25:17 ± 0.08
Latitude 41.6837 ± 0.0036
Longitude 13.5317 ± 0.0048
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73111781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 73105981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-07 09:20:56

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 73111781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-07 16:07:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2019-10-07T08:26:25.25 3.0 negative manual Pn 4.12 0
IV.ECTS.EHZ. 2019-10-07T08:26:10.44 3.0 undecidable manual Pn 3.12 0
GU.ENR.HHZ. 2019-10-07T08:26:06.58 3.0 positive manual Pg 21.940001 0
CR.STON.BHZ. 2019-10-07T08:26:06.18 3.0 undecidable manual Pg 7.88 0
IV.ALJA.HHZ. 2019-10-07T08:26:01.60 3.0 undecidable manual Pn -1.09 0
IV.TRIF.CHZ. 2019-10-07T08:25:46.88 3.0 undecidable manual Sg 22.030001 0
IV.INTR.HHZ. 2019-10-07T08:25:32.76 0.6 undecidable manual S 40 47.7189 50 -0.06 47
IV.GIUL.HHE. 2019-10-07T08:25:27.09 0.6 undecidable manual S 239 26.8509 107 0.3 47
IT.OPI.HGZ. 2019-10-07T08:25:27.03 1.0 undecidable manual S 67 26.751 107 0.26 24
IV.VVLD.HNN. 2019-10-07T08:25:25.27 0.3 undecidable manual S 20 21.9669 111 0.07 74
IV.INTR.HHZ. 2019-10-07T08:25:25.90 0.1 undecidable manual P 40 47.7189 50 -0.25 91
IV.GUAR.HHN. 2019-10-07T08:25:25.01 0.3 undecidable manual S 304 21.9669 111 -0.17 73
IV.LIK.EHN.01 2019-10-07T08:25:24.88 0.3 undecidable manual S 174 20.5683 112 0.15 73
IV.POFI.HHZ. 2019-10-07T08:25:23.41 0.6 undecidable manual S 76 15.3735 118 0.29 48
IT.OPI.HGZ. 2019-10-07T08:25:22.79 1.0 undecidable manual P 67 26.751 107 0.14 24
IV.GIUL.HHE. 2019-10-07T08:25:22.76 0.1 undecidable manual P 239 26.8509 107 0.09 98
IV.LIK.EHN.01 2019-10-07T08:25:21.30 1.0 undecidable manual P 174 20.5683 112 -0.18 24
IV.GUAR.HHN. 2019-10-07T08:25:21.76 0.1 undecidable manual P 304 21.9669 111 0.02 100
IV.VVLD.HNN. 2019-10-07T08:25:21.80 0.1 undecidable manual P 20 21.9669 111 0.05 99
IV.POFI.HHZ. 2019-10-07T08:25:20.77 0.1 undecidable manual P 76 15.3735 118 0.22 97
IV.LRP.EHZ. 2019-10-07T08:25:19.99 0.6 undecidable manual S 132 6.0939 144 -0.63 44
IV.LRP.EHZ. 2019-10-07T08:25:18.87 0.1 negative manual P 132 6.0939 144 -0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LRP.EHN. ML:1.8 0.0011565 0.78 AML other m 2019-10-07T08:25:20.45
IV.POFI.HHN. ML:0.7 0.000051488885 1.5392 AML other m 2019-10-07T08:25:23.01
IV.POFI.HNN. ML:1.0 0.00010929984500000001 1.5712 AML other m 2019-10-07T08:25:24.17
IV.POFI.HNE. ML:1.0 0.000110176985 0.3136 AML other m 2019-10-07T08:25:24.10
IV.POFI.HHE. ML:0.9 0.00008505000000000001 0.36 AML other m 2019-10-07T08:25:24.09
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