Earthquake with magnitude of ML 0.6 on date 08-03-2021 and time 23:35:24 (UTC) in region 3 km NW Castelliri (FR)

A magnitude ML 0.6 earthquake occured in region: 3 km NW Castelliri (FR), on

  • 08-03-2021 23:35:24 (UTC)
  • 09-03-2021 00:35:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6970, 13.5280 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.

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 3 3454 3454
Isola del Liri FR 4 11715 15169
Monte San Giovanni Campano FR 6 12929 28098
Boville Ernica FR 8 8737 36835
Sora FR 8 26144 62979
Arpino FR 9 7262 70241
Broccostella FR 9 2741 72982
Veroli FR 9 20560 93542
Fontana Liri FR 10 2953 96495
Strangolagalli FR 11 2491 98986
Pescosolido FR 12 1555 100541
Balsorano AQ 12 3569 104110
Ripi FR 12 5270 109380
Arce FR 13 5756 115136
Fontechiari FR 13 1303 116439
Rocca d'Arce FR 13 959 117398
Torrice FR 13 4816 122214
Campoli Appennino FR 14 1725 123939
Santopadre FR 14 1357 125296
Posta Fibreno FR 14 1139 126435
Vicalvi FR 15 783 127218
Collepardo FR 15 968 128186
San Vincenzo Valle Roveto AQ 15 2347 130533
Alatri FR 16 28952 159485
Frosinone FR 16 46323 205808
Ceprano FR 17 8897 214705
Colfelice FR 17 1932 216637
Arnara FR 17 2309 218946
Casalvieri FR 17 2698 221644
Pofi FR 17 4204 225848
Vico nel Lazio FR 18 2234 228082
Alvito FR 18 2713 230795
Casalattico FR 18 574 231369
Morino AQ 20 1448 232817
Roccasecca FR 20 7365 240182

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km E of Latina (125985 inhabitants)
62 Km E of Velletri (53303 inhabitants)
67 Km E of Tivoli (56533 inhabitants)
74 Km S of L'Aquila (69753 inhabitants)
74 Km E of Aprilia (73446 inhabitants)
74 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Anzio (54211 inhabitants)
85 Km E of Pomezia (62966 inhabitants)
89 Km E of Roma (2864731 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
96 Km NW of Caserta (76326 inhabitants)
98 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 0.6 2021-03-08
23:35:24
41.6967 13.5278 8 2021-07-12
16:55:05
Bollettino Sismico Italiano INGV 89039311
Reviewed
Rev100
ML 0.6 2021-03-08
23:35:24
41.7017 13.5193 7 2021-03-09
00:00:50
Sala Sismica INGV-Roma 87925661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-08 23:35:24 ± 0.07
Latitude 41.6967 ± 0.0036
Longitude 13.5278 ± 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 89039311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 341
Semi-minor axis of confidence ellipse (meter) 307
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.42178
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 89039311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-12 16:46:37

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 87925661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-09 00:00:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HNE. 2021-03-08T23:35:39.92 0.6 undecidable manual S 42 46.8198 50 -0.4 44
IV.CERA.HHE. 2021-03-08T23:35:39.12 0.6 undecidable manual S 105 42.1245 50 0.05 48
IV.PTQR.HHN. 2021-03-08T23:35:37.90 0.6 undecidable manual S 344 37.629 50 0.03 48
IV.GIUL.HHZ. 2021-03-08T23:35:34.61 0.6 undecidable manual S 236 27.3504 105 0.19 48
IV.CERA.HHE. 2021-03-08T23:35:33.31 0.6 undecidable manual P 105 42.1245 50 0.37 45
IV.INTR.HNE. 2021-03-08T23:35:33.22 0.6 undecidable manual P 42 46.8198 50 -0.45 44
IV.VVLD.HHZ. 2021-03-08T23:35:32.25 0.3 undecidable manual S 22 20.7681 110 0.02 75
IV.PTQR.HHN. 2021-03-08T23:35:32.60 0.6 undecidable manual P 344 37.629 50 0.35 45
IV.GUAR.HNN. 2021-03-08T23:35:32.30 0.6 undecidable manual S 301 20.868 110 0.02 50
IV.GIUL.HHZ. 2021-03-08T23:35:30.13 0.3 undecidable manual P 236 27.3504 105 -0.13 72
IV.POFI.HHZ. 2021-03-08T23:35:30.71 0.6 undecidable manual S 81 15.3735 116 0.19 49
IV.VVLD.HHZ. 2021-03-08T23:35:29.01 0.1 undecidable manual P 22 20.7681 110 0.01 100
IV.GUAR.HNN. 2021-03-08T23:35:28.91 0.6 undecidable manual P 301 20.868 110 -0.12 49
IV.POFI.HHZ. 2021-03-08T23:35:28.20 0.1 undecidable manual P 81 15.3735 116 0.19 97
IV.LRP.EHZ. 2021-03-08T23:35:27.88 0.6 undecidable manual S 138 7.2927 136 -0.33 48
IV.LRP.EHZ. 2021-03-08T23:35:26.59 0.3 undecidable manual P 138 7.2927 136 -0.08 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LRP.EHN. ML:0.5 0.00006105 0.88 AML other m 2021-03-08T23:35:28.98
IV.LRP.EHE. ML:1.1 0.0002265 1.06 AML other m 2021-03-08T23:35:29.31
IV.VVLD.HHN. ML:0.7 0.0000336 0.56 AML other m 2021-03-08T23:35:31.61
IV.GIUL.HHN. ML:0.9 0.0000385 0.42 AML other m 2021-03-08T23:35:32.46
IV.VVLD.HHE. ML:0.5 0.00002605 0.42 AML other m 2021-03-08T23:35:32.63
IV.POFI.HHE. ML:0.5 0.00003185 1.4 AML other m 2021-03-08T23:35:32.08
IV.POFI.HHN. ML:0.4 0.000022850000000000003 0.86 AML other m 2021-03-08T23:35:34.90
IV.GIUL.HHE. ML:0.7 0.00002525 1.22 AML other m 2021-03-08T23:35:39.09
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