Earthquake with magnitude of ML 0.9 on date 20-04-2019 and time 08:23:18 (Italy) in region 5 km N Campotosto (AQ)

A magnitude ML 0.9 earthquake occured in region: 5 km N Campotosto (AQ), on

  • 20-04-2019 06:23:18 (UTC)
  • 20-04-2019 08:23:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6050, 13.3580 at 12 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
Campotosto AQ 5 542 542
Amatrice RI 6 2657 3199
Capitignano AQ 10 665 3864
Crognaleto TE 12 1297 5161
Cortino TE 13 656 5817
Montereale AQ 13 2581 8398
Accumoli RI 14 667 9065
Fano Adriano TE 16 296 9361
Cittareale RI 16 482 9843
Rocca Santa Maria TE 17 537 10380
Barete AQ 18 737 11117
Pietracamela TE 19 271 11388
Valle Castellana TE 19 977 12365
Acquasanta Terme AP 19 2916 15281
Pizzoli AQ 19 4326 19607
Arquata del Tronto AP 19 1178 20785
Cagnano Amiterno AQ 19 1369 22154

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of L'Aquila (69753 inhabitants)
29 Km W of Teramo (54892 inhabitants)
58 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
66 Km SE of Foligno (57155 inhabitants)
72 Km W of Pescara (121014 inhabitants)
72 Km W of Chieti (51815 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km SE of Perugia (166134 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 0.9 2019-04-20
06:23:18
42.6048 13.3577 12 2019-08-22
08:25:11
Bollettino Sismico Italiano INGV 70882871
Reviewed
Rev100
ML 0.8 2019-04-20
06:23:19
42.7548 13.5342 16 2019-04-20
06:29:01
Sala Sismica INGV-Roma 67772781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-20 06:23:18 ± 0.11
Latitude 42.6048 ± 0.0036
Longitude 13.3577 ± 0.0073
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70882871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 574
Semi-minor axis of confidence ellipse (meter) 329
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18166
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 70882871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-26 00:52:52

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 67772781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-20 06:29:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2019-04-20T06:24:47.58 3.0 undecidable manual Sg 10.56 0
CH.FUORN.HHZ. 2019-04-20T06:24:25.20 3.0 undecidable manual Pg 17.459999 0
GU.RNCA.HHZ. 2019-04-20T06:24:10.80 3.0 positive manual Pg 10.24 0
IV.IMOL.HNZ. 2019-04-20T06:24:05.78 3.0 undecidable manual Sn -3.45 0
IV.MNTV.HNZ. 2019-04-20T06:24:03.09 3.0 undecidable manual Pg 13.35 0
IV.MCIV.CHZ. 2019-04-20T06:23:56.88 3.0 undecidable manual Sn -0.37 0
MN.TIR.HHZ. 2019-04-20T06:23:56.42 3.0 undecidable manual Pn -1.8 0
IV.LIK.EHZ.01 2019-04-20T06:23:44.08 3.0 undecidable manual S 2.87 0
IV.PE3.EHZ. 2019-04-20T06:23:43.44 3.0 undecidable manual Sn -5.59 0
IV.GAVE.EHZ. 2019-04-20T06:23:34.33 3.0 undecidable manual Sg -1.05 0
IV.CRAC.EHZ. 2019-04-20T06:23:33.61 3.0 positive manual Pn -4.62 0
IV.TERO.HHZ. 2019-04-20T06:23:26.71 0.1 undecidable manual S 84 20.1687 94 0.05 97
IV.MTRA.EHZ. 2019-04-20T06:23:25.76 0.1 undecidable manual S 11 17.1717 98 -0.09 95
IV.CAMP.HHZ. 2019-04-20T06:23:23.64 0.3 undecidable manual S 151 8.7801 130 -0.15 73
IV.TERO.HHZ. 2019-04-20T06:23:23.34 0.1 undecidable manual P 84 20.1687 94 0 98
IV.SMA1.EHZ. 2019-04-20T06:23:23.04 0.6 undecidable manual S 327 3.3966 159 0.08 50
IV.T1299.HNZ. 2019-04-20T06:23:23.35 0.3 undecidable manual S 298 6.993 139 -0.1 73
IV.MTRA.EHZ. 2019-04-20T06:23:22.86 0.1 undecidable manual P 11 17.1717 98 -0.01 97
IV.SMA1.EHZ. 2019-04-20T06:23:21.36 0.1 undecidable manual P 327 3.3966 159 0.15 98
IV.T1299.HNZ. 2019-04-20T06:23:21.50 0.1 undecidable manual P 298 6.993 139 0.01 100
IV.CAMP.HHZ. 2019-04-20T06:23:21.73 0.1 undecidable manual P 151 8.7801 130 0.05 98
IV.VAGA.HHZ. 2019-04-20T06:23:16.85 3.0 positive manual Pg -1.87 0
IT.MCLF.HNZ. 2019-04-20T06:23:07.57 3.0 undecidable manual Pn -3.51 0
IV.LPEL.HHZ. 2019-04-20T06:23:05.57 3.0 undecidable manual P -2.98 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.9 0.00006295 0.1 AML other m 2019-04-20T06:23:25.93
IV.MTRA.EHN. ML:0.8 0.0000483 0.08 AML other m 2019-04-20T06:23:25.92
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
Waveforms Seismic signals in miniseed + resp format not available