Earthquake with magnitude of ML 0.7 on date 04-04-2020 and time 02:13:53 (Italy) in region 4 km E Campoli Appennino (FR)

A magnitude ML 0.7 earthquake occured in region: 4 km E Campoli Appennino (FR), on

  • 04-04-2020 00:13:53 (UTC)
  • 04-04-2020 02:13:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.74, 13.73 at 10 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
Campoli Appennino FR 4 1725 1725
Posta Fibreno FR 5 1139 2864
Alvito FR 6 2713 5577
Pescosolido FR 6 1555 7132
Vicalvi FR 7 783 7915
San Donato Val di Comino FR 8 2107 10022
Broccostella FR 8 2741 12763
Fontechiari FR 8 1303 14066
Sora FR 9 26144 40210
Pescasseroli AQ 10 2203 42413
Opi AQ 10 420 42833
Gallinaro FR 11 1269 44102
Casalvieri FR 12 2698 46800
Settefrati FR 13 728 47528
Casalattico FR 13 574 48102
Arpino FR 14 7262 55364
Isola del Liri FR 14 11715 67079
Atina FR 14 4316 71395
Balsorano AQ 15 3569 74964
Picinisco FR 15 1218 76182
Castelliri FR 16 3454 79636
Villa Latina FR 17 1241 80877
Santopadre FR 17 1357 82234
Villavallelonga AQ 17 919 83153
Villetta Barrea AQ 17 653 83806
Civitella Alfedena AQ 18 296 84102
Belmonte Castello FR 19 739 84841
San Vincenzo Valle Roveto AQ 20 2347 87188

Municipalities with at least 50000 inhabitants

An earthquake occurred to
74 Km SE of L'Aquila (69753 inhabitants)
75 Km E of Latina (125985 inhabitants)
78 Km SW of Chieti (51815 inhabitants)
79 Km E of Velletri (53303 inhabitants)
81 Km E of Tivoli (56533 inhabitants)
88 Km E of Guidonia Montecelio (88673 inhabitants)
89 Km NW of Caserta (76326 inhabitants)
91 Km SW of Pescara (121014 inhabitants)
91 Km E of Aprilia (73446 inhabitants)
93 Km SW of Montesilvano (53738 inhabitants)
94 Km NW of Aversa (53047 inhabitants)
97 Km E of Anzio (54211 inhabitants)
98 Km NW of Giugliano in Campania (122974 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 0.7 2020-04-04
00:13:53
41.74 13.73 10 2020-04-04
02:04:12
Sala Sismica INGV-Roma 77853621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-04 00:13:53 ± 0.11
Latitude 41.74 ± 0.00
Longitude 13.73 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77853621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 417
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 146
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77853621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-04 02:04:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2020-04-04T00:13:59.61 0.3 positive manual P 26 0.3049 50 -0.19 70
IV.LRP.EHZ. 2020-04-04T00:13:59.24 0.1 undecidable manual S 229 0.1376 122 -0.04 100
IV.VVLD.HHZ. 2020-04-04T00:13:59.76 0.1 undecidable manual S 330 0.1529 120 -0.02 100
IV.VVLD.HHZ. 2020-04-04T00:13:57.08 0.6 positive manual P 330 0.1529 120 0.17 48
IT.OPI.HGE. 2020-04-04T00:13:57.68 0.3 undecidable manual S 63 0.0872 135 -0.08 75
IV.POFI.HHZ. 2020-04-04T00:13:56.30 0.1 undecidable manual S 207 0.0225 166 -0.18 99
IV.LRP.EHZ. 2020-04-04T00:13:56.65 0.1 undecidable manual P 229 0.1376 122 0.02 100
IT.OPI.HGE. 2020-04-04T00:13:55.88 0.1 undecidable manual P 63 0.0872 135 0.13 99
IV.POFI.HHZ. 2020-04-04T00:13:55.21 0.1 negative manual P 207 0.0225 166 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHN. ML:0.9 0.0001405 1.36 AML other m 2020-04-04T00:13:57.82
IV.POFI.HHE. ML:0.8 0.0001241 1.34 AML other m 2020-04-04T00:13:57.17
IV.LRP.EHN. ML:0.3 2.215E-5 0.66 AML other m 2020-04-04T00:13:59.55
IV.LRP.EHE. ML:0.7 4.735E-5 0.44 AML other m 2020-04-04T00:13:59.93
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