Earthquake with magnitude of ML 0.8 on date 08-04-2020 and time 22:45:17 (UTC) in region 3 km W Campotosto (AQ)

A magnitude ML 0.8 earthquake occured in region: 3 km W Campotosto (AQ), on

  • 08-04-2020 22:45:17 (UTC)
  • 09-04-2020 00:45:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.56, 13.33 at 13 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
Campotosto AQ 3 542 542
Capitignano AQ 5 665 1207
Montereale AQ 8 2581 3788
Amatrice RI 8 2657 6445
Crognaleto TE 12 1297 7742
Barete AQ 13 737 8479
Pizzoli AQ 14 4326 12805
Cagnano Amiterno AQ 14 1369 14174
Cittareale RI 16 482 14656
Cortino TE 16 656 15312
Accumoli RI 16 667 15979
Fano Adriano TE 17 296 16275
Borbona RI 17 617 16892
Pietracamela TE 19 271 17163
Posta RI 20 694 17857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km SE of Perugia (166134 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 0.8 2020-04-08
22:45:17
42.56 13.33 13 2020-04-08
22:51:44
Sala Sismica INGV-Roma 78024471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 22:45:17 ± 0.08
Latitude 42.56 ± 0.00
Longitude 13.33 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78024471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 440
Semi-minor axis of confidence ellipse (meter) 61
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.43527
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 78024471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 22:51:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-04-08T22:45:30.15 0.6 undecidable manual S 359 0.3372 94 0.03 48
IV.MF5.EHZ. 2020-04-08T22:45:26.85 1.0 undecidable manual P 12 0.4353 92 0.32 22
IV.TERO.HHZ. 2020-04-08T22:45:26.07 0.6 undecidable manual S 73 0.2077 98 -0.23 47
IV.MTRA.EHE. 2020-04-08T22:45:25.68 0.6 undecidable manual S 13 0.1996 99 -0.39 46
IV.MMO1.EHZ. 2020-04-08T22:45:24.81 0.1 undecidable manual P 359 0.3372 94 -0.04 96
IV.RM33.EHZ. 2020-04-08T22:45:23.07 0.6 undecidable manual S 239 0.1025 124 -0.29 47
IV.TERO.HHZ. 2020-04-08T22:45:22.71 0.1 undecidable manual P 73 0.2077 98 0.06 97
IV.MTRA.EHE. 2020-04-08T22:45:22.42 0.1 undecidable manual P 13 0.1996 99 -0.09 97
IV.GIGS.HHZ. 2020-04-08T22:45:22.68 0.1 undecidable manual P 122 0.2068 98 0.05 98
IV.CAMP.HHZ. 2020-04-08T22:45:22.39 0.3 undecidable manual S 115 0.0612 144 -0.08 74
IV.SMA1.EHZ. 2020-04-08T22:45:22.61 0.6 undecidable manual S 1 0.0683 140 0 50
IV.CAMP.HHZ. 2020-04-08T22:45:20.65 0.1 undecidable manual P 115 0.0612 144 0.21 97
IV.SMA1.EHZ. 2020-04-08T22:45:20.69 0.1 positive manual P 1 0.0683 140 0.17 98
IV.RM33.EHZ. 2020-04-08T22:45:20.92 0.1 undecidable manual P 239 0.1025 124 -0.03 100
IV.T1299.EHN. 2020-04-08T22:45:20.77 0.1 undecidable manual P 332 0.0818 133 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1 0.00013217675 0.32 AML other m 2020-04-08T22:45:23.00
IV.SMA1.EHN. ML:0.7 6.0514575E-5 0.1536 AML other m 2020-04-08T22:45:23.16
IV.RM33.HNN. ML:1 0.000115788095 0.5248 AML other m 2020-04-08T22:45:28.12
IV.RM33.EHE. ML:0.8 6.2160645E-5 0.1152 AML other m 2020-04-08T22:45:23.32
IV.RM33.EHN. ML:0.6 4.087174E-5 0.1408 AML other m 2020-04-08T22:45:23.16
IV.GIGS.HHN. ML:-0.1 4.1893561E-6 0.2304 AML other m 2020-04-08T22:45:28.43
IV.TERO.HHE. ML:0.5 1.974669E-5 0.0768 AML other m 2020-04-08T22:45:27.36
IV.TERO.HHN. ML:0.7 3.203246E-5 0.1024 AML other m 2020-04-08T22:45:26.56
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