Earthquake with magnitude of ML 0.2 on date 23-08-2019 and time 20:05:45 (UTC) in region 3 km NW Campotosto (AQ)

A magnitude ML 0.2 earthquake occured in region: 3 km NW Campotosto (AQ), on

  • 23-08-2019 20:05:45 (UTC)
  • 23-08-2019 22:05:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.57, 13.35 at 15 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 7 665 1207
Amatrice RI 8 2657 3864
Montereale AQ 10 2581 6445
Crognaleto TE 11 1297 7742
Cortino TE 14 656 8398
Barete AQ 15 737 9135
Pizzoli AQ 16 4326 13461
Fano Adriano TE 16 296 13757
Accumoli RI 16 667 14424
Cittareale RI 16 482 14906
Cagnano Amiterno AQ 16 1369 16275
Pietracamela TE 18 271 16546
Borbona RI 19 617 17163
Rocca Santa Maria TE 19 537 17700

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of L'Aquila (69753 inhabitants)
31 Km W of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
72 Km W of Pescara (121014 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
98 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
Rev 100 ML 0.2 2019-08-23
20:05:45
42.57 13.35 15 2019-08-24
05:14:21
Sala Sismica INGV-Roma 71756811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 20:05:45 ± 0.08
Latitude 42.57 ± 0.00
Longitude 13.35 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71756811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 402
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 71756811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-24 05:14:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2019-08-23T20:07:27.00 3.0 undecidable manual Sg 13.82 0
CR.STON.BHZ. 2019-08-23T20:07:24.22 3.0 undecidable manual Sn 3.44 0
IV.ZONE.HHZ. 2019-08-23T20:07:21.69 3.0 undecidable manual Sn 2.67 0
IV.ORZI.HHZ. 2019-08-23T20:06:46.33 3.0 positive manual Pg 17.07 0
IV.CET2.HHZ. 2019-08-23T20:06:39.98 3.0 undecidable manual Pg 10.73 0
IV.MILN.HNZ. 2019-08-23T20:06:34.49 3.0 undecidable manual Pn 0.89 0
IV.SERM.HNZ. 2019-08-23T20:06:28.91 3.0 positive manual Pg 9.48 0
IV.PE3.EHZ. 2019-08-23T20:06:19.92 3.0 undecidable manual Sg -1.16 0
IV.COLB.HHZ. 2019-08-23T20:06:02.56 3.0 undecidable manual Pn -0.71 0
IV.ARVD.HHZ. 2019-08-23T20:05:58.63 3.0 positive manual Pg -0.02 0
IV.NRCA.HHE. 2019-08-23T20:05:56.96 0.3 undecidable manual S 327 0.3121 99 -0.18 71
IV.LNSS.HHE. 2019-08-23T20:05:54.50 0.3 undecidable manual S 278 0.2284 105 -0.21 71
IV.GIGS.HHZ. 2019-08-23T20:05:53.88 0.3 undecidable manual S 126 0.205 108 -0.16 72
IV.TERO.HHE. 2019-08-23T20:05:53.65 0.3 undecidable manual S 75 0.1952 110 -0.13 73
IV.NRCA.HHE. 2019-08-23T20:05:52.21 0.1 undecidable manual P 327 0.3121 99 0.05 98
IV.RM33.EHZ. 2019-08-23T20:05:51.53 0.3 undecidable manual S 237 0.1169 128 -0.21 73
IV.LNSS.HHE. 2019-08-23T20:05:50.88 0.1 undecidable manual P 278 0.2284 105 0.12 98
IV.GIGS.HHZ. 2019-08-23T20:05:50.40 0.1 undecidable manual P 126 0.205 108 0.02 100
IV.CAMP.HHE. 2019-08-23T20:05:50.46 0.3 undecidable manual S 130 0.0585 151 -0.14 75
IV.TERO.HHE. 2019-08-23T20:05:50.24 3.0 undecidable manual P 75 0.1952 110 0.02 0
TV.SF01.EHZ. 2019-08-23T20:05:50.55 3.0 negative manual P 0.19 0
IV.SMA1.EHZ. 2019-08-23T20:05:50.58 0.3 undecidable manual S 351 0.0585 151 -0.02 77
IV.RM33.EHZ. 2019-08-23T20:05:49.17 0.1 undecidable manual P 237 0.1169 128 0.12 100
IV.SMA1.EHZ. 2019-08-23T20:05:48.59 0.1 undecidable manual P 351 0.0585 151 0.21 99
IV.CAMP.HHE. 2019-08-23T20:05:48.61 0.1 undecidable manual P 130 0.0585 151 0.22 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZONE.HHN. ML:3 3.76E-5 0.5 AML other m 2019-08-23T20:07:07.58
IV.ZONE.HHE. ML:2.9 3.64E-5 1.32 AML other m 2019-08-23T20:07:07.78
IV.MILN.HHN. ML:4.5 0.00118 0.1 AML other m 2019-08-23T20:07:11.55
IV.MILN.HHE. ML:4.4 0.000902 0.3 AML other m 2019-08-23T20:07:11.60
IV.SMA1.EHE. ML:0 1.24087685E-5 0.1408 AML other m 2019-08-23T20:05:51.05
IV.SMA1.EHN. ML:0 8.829748E-6 0.064 AML other m 2019-08-23T20:05:51.03
IV.RM33.EHE. ML:0.5 2.7937045E-5 0.1152 AML other m 2019-08-23T20:05:51.95
IV.RM33.EHN. ML:0.4 1.92053185E-5 0.0896 AML other m 2019-08-23T20:05:51.73
IV.GIGS.HHE. ML:0 1.8976077E-6 0.0768 AML other m 2019-08-23T20:05:54.54
IV.GIGS.HHN. ML:0 1.95148235E-6 0.0768 AML other m 2019-08-23T20:05:54.04
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