Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 16-04-2020 and time 18:34:15 (Italy) in region 2 km S Campotosto (AQ)

A magnitude ML 0.9 earthquake occured in region: 2 km S Campotosto (AQ), on

  • 16-04-2020 16:34:15 (UTC)
  • 16-04-2020 18:34:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5430, 13.3660 at 11 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.

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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
Campotosto AQ 2 542 542
Capitignano AQ 6 665 1207
Crognaleto TE 9 1297 2504
Montereale AQ 10 2581 5085
Amatrice RI 12 2657 7742
Barete AQ 12 737 8479
Pizzoli AQ 13 4326 12805
Fano Adriano TE 14 296 13101
Cortino TE 15 656 13757
Cagnano Amiterno AQ 15 1369 15126
Pietracamela TE 16 271 15397
Cittareale RI 19 482 15879
Borbona RI 19 617 16496
Accumoli RI 20 667 17163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of L'Aquila (69753 inhabitants)
31 Km W of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
71 Km SE of Foligno (57155 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 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
Reviewed
Rev100 		ML 0.9 2020-04-16
16:34:15		 42.5432 13.3658 11 2020-04-16
16:46:01		 Sala Sismica INGV-Roma 78291421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-16 16:34:15 ± 0.05
Latitude 42.5432 ± 0.0036
Longitude 13.3658 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78291421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.34444
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:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 78291421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-16 16:46:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-04-16T16:34:28.16 0.3 undecidable manual S 328 38.2284 50 0 72
IV.LNSS.HHZ. 2020-04-16T16:34:25.36 0.3 undecidable manual S 284 27.3504 50 0.08 72
IV.MTRA.EHZ. 2020-04-16T16:34:24.02 0.3 undecidable manual S 6 23.8539 50 -0.31 69
IV.GIGS.HHZ. 2020-04-16T16:34:23.05 0.3 undecidable manual S 120 19.6692 50 -0.17 72
IV.TERO.HHZ. 2020-04-16T16:34:23.57 0.3 undecidable manual S 66 21.3675 50 -0.1 73
IV.NRCA.HHZ. 2020-04-16T16:34:22.79 0.1 undecidable manual P 328 38.2284 50 0 96
IV.RM33.EHZ. 2020-04-16T16:34:21.04 0.3 undecidable manual S 253 12.9759 130 -0.26 71
IV.LNSS.HHZ. 2020-04-16T16:34:21.13 0.1 undecidable manual P 284 27.3504 50 0 98
IV.SMA1.EHZ. 2020-04-16T16:34:20.52 0.3 undecidable manual S 346 9.9789 137 -0.05 75
IV.T1299.HNZ. 2020-04-16T16:34:20.98 0.3 undecidable manual S 326 12.1767 132 -0.13 73
IV.TERO.HHZ. 2020-04-16T16:34:20.37 0.1 undecidable manual P 66 21.3675 50 0.17 95
IV.MTRA.EHZ. 2020-04-16T16:34:20.60 0.1 undecidable manual P 6 23.8539 50 0.03 98
IV.GIGS.HHZ. 2020-04-16T16:34:20.02 0.1 undecidable manual P 120 19.6692 50 0.08 97
IV.CAMP.HHZ. 2020-04-16T16:34:19.15 0.3 undecidable manual S 103 3.5964 161 -0.26 72
IV.SMA1.EHZ. 2020-04-16T16:34:18.59 0.1 undecidable manual P 346 9.9789 137 0.19 97
IV.T1299.HNZ. 2020-04-16T16:34:18.93 0.1 undecidable manual P 326 12.1767 132 0.21 96
IV.RM33.EHZ. 2020-04-16T16:34:18.84 0.1 undecidable manual P 253 12.9759 130 0.01 100
IV.CAMP.HHZ. 2020-04-16T16:34:17.94 0.1 undecidable manual P 103 3.5964 161 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.9 0.00010334999999999999 1.38 AML other m 2020-04-16T16:34:20.28
IV.RM33.EHN. ML:0.8 0.00005765 1.32 AML other m 2020-04-16T16:34:21.19
IV.SMA1.EHE. ML:1.0 0.0001315 0.86 AML other m 2020-04-16T16:34:21.85
IV.RM33.EHE. ML:0.6 0.0000466 1.36 AML other m 2020-04-16T16:34:23.76
IV.TERO.HHN. ML:0.8 0.000040050000000000004 0.28 AML other m 2020-04-16T16:34:23.78
IV.TERO.HHE. ML:0.6 0.0000248 0.4 AML other m 2020-04-16T16:34:23.76
IV.NRCA.HHN. ML:1.2 0.000054199999999999996 0.44 AML other m 2020-04-16T16:34:28.28
IV.NRCA.HHE. ML:1.4 0.0000993 0.1 AML other m 2020-04-16T16:34:28.46
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