Earthquake with magnitude of ML 0.8 on date 28-09-2019 and time 22:08:36 (Italy) in region 4 km N Accumoli (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km N Accumoli (RI), on

  • 28-09-2019 20:08:36 (UTC)
  • 28-09-2019 22:08:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.73, 13.24 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
Accumoli RI 4 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 12 2657 4502
Cittareale RI 14 482 4984
Norcia PG 14 4957 9941
Acquasanta Terme AP 15 2916 12857
Montegallo AP 15 523 13380
Cascia PG 19 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
99 Km E of Viterbo (67173 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 2019-09-28
20:08:36
42.73 13.24 13 2019-09-28
20:22:27
Sala Sismica INGV-Roma 72864271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-28 20:08:36 ± 0.05
Latitude 42.73 ± 0.00
Longitude 13.24 ± 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 72864271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 72864271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-28 20:22:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2019-09-28T20:10:20.60 3.0 undecidable manual Sn 0.66 0
IV.IMI.HHZ. 2019-09-28T20:10:17.07 3.0 undecidable manual Sn 0.8 0
IV.MBAL.EHZ. 2019-09-28T20:10:07.29 3.0 undecidable manual Sn -0.4 0
IV.HPAC.HHZ. 2019-09-28T20:10:01.71 3.0 negative manual Pg 14.32 0
IV.LINA.HHZ. 2019-09-28T20:10:01.04 3.0 undecidable manual Pn 4.74 0
OX.VARN.HHZ. 2019-09-28T20:10:00.79 3.0 undecidable manual Sn -6.78 0
IV.MNTV.HNZ. 2019-09-28T20:09:48.85 3.0 undecidable manual Sn -7.79 0
IV.MFNL.HHZ. 2019-09-28T20:09:43.41 3.0 undecidable manual Pg 13.29 0
IV.PZUN.HHZ. 2019-09-28T20:09:36.30 3.0 undecidable manual Sn 1.23 0
IV.MBAL.EHZ. 2019-09-28T20:09:31.00 3.0 positive manual Pg 8.11 0
RF.GEPF.HHZ. 2019-09-28T20:09:31.08 3.0 positive manual Pg 5.45 0
IV.SPS2.HHZ. 2019-09-28T20:09:28.03 3.0 undecidable manual Pg 6.5 0
GU.CANO.HHZ. 2019-09-28T20:09:22.42 3.0 undecidable manual Pn -3.91 0
IV.CPGN.EHZ. 2019-09-28T20:09:18.13 3.0 undecidable manual Sn 1.97 0
IV.SERM.HNZ. 2019-09-28T20:09:12.05 3.0 positive manual Pn -0.63 0
IV.VVLD.HHZ. 2019-09-28T20:08:52.08 3.0 undecidable manual Sn 1.5 0
IV.ARRO.EHZ. 2019-09-28T20:08:50.05 3.0 undecidable manual Sn -0.68 0
IV.CSP1.EHZ. 2019-09-28T20:08:49.78 0.6 undecidable manual S 356 0.3651 93 0.27 46
IT.MTCL.HGE. 2019-09-28T20:08:48.07 0.6 undecidable manual S 326 0.3193 94 -0.1 47
IV.FDMO.HHZ. 2019-09-28T20:08:48.37 0.6 undecidable manual S 340 0.3283 94 -0.07 47
IV.CAMP.HHE. 2019-09-28T20:08:45.19 0.6 undecidable manual S 147 0.2284 98 -0.29 46
IV.LNSS.HHE. 2019-09-28T20:08:44.43 0.6 undecidable manual S 230 0.1934 101 -0.03 50
IV.MMO1.EHZ. 2019-09-28T20:08:44.21 0.6 undecidable manual S 20 0.1826 102 0.06 50
IT.VNF1.HGZ. 2019-09-28T20:08:44.68 3.0 positive manual P 0.03 0
IV.FDMO.HHZ. 2019-09-28T20:08:43.30 1.0 positive manual P 340 0.3283 94 0.02 24
IV.CSP1.EHZ. 2019-09-28T20:08:43.98 0.6 negative manual P 356 0.3651 93 0.08 48
IT.MTCL.HGE. 2019-09-28T20:08:43.02 0.1 undecidable manual P 326 0.3193 94 -0.1 94
IV.SMA1.EHZ. 2019-09-28T20:08:42.20 0.6 undecidable manual S 145 0.1196 118 -0.18 48
IV.NRCA.HHZ. 2019-09-28T20:08:42.71 0.6 undecidable manual S 319 0.1412 111 -0.25 48
IV.MTRA.EHZ. 2019-09-28T20:08:42.14 3.0 undecidable manual P 0
IV.CAMP.HHE. 2019-09-28T20:08:41.50 0.1 undecidable manual P 147 0.2284 98 -0.07 96
IV.T1299.EHE. 2019-09-28T20:08:41.91 0.6 undecidable manual S 162 0.098 127 0.05 50
IV.RM33.EHZ. 2019-09-28T20:08:41.46 1.0 undecidable manual P 185 0.2194 98 0.03 25
IV.LNSS.HHE. 2019-09-28T20:08:41.03 0.1 undecidable manual P 230 0.1934 101 0.05 99
IV.MC2.EHZ. 2019-09-28T20:08:41.10 1.0 positive manual P 348 0.1871 101 0.22 24
IV.ARRO.EHZ. 2019-09-28T20:08:40.07 3.0 undecidable manual P 0.42 0
IV.NRCA.HHZ. 2019-09-28T20:08:40.16 0.1 undecidable manual P 319 0.1412 111 0.04 100
IV.MMO1.EHZ. 2019-09-28T20:08:40.85 1.0 undecidable manual P 20 0.1826 102 0.05 25
IV.T1299.EHE. 2019-09-28T20:08:39.69 0.1 undecidable manual P 162 0.098 127 0.21 98
IV.SMA1.EHZ. 2019-09-28T20:08:39.89 0.3 negative manual P 145 0.1196 118 0.11 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.7 4.601813E-5 0.2176 AML other m 2019-09-28T20:08:42.51
IV.SMA1.EHN. ML:0.6 3.965183E-5 0.1024 AML other m 2019-09-28T20:08:42.57
IV.ARRO.EHE. ML:0.7 1.686933E-5 0.2048 AML other m 2019-09-28T20:09:05.47
IV.ARRO.EHN. ML:0.8 1.9019765E-5 0.1792 AML other m 2019-09-28T20:09:05.57
IV.NRCA.HNE. ML:1.6 0.00033077705 0.1152 AML other m 2019-09-28T20:08:42.80
IV.NRCA.HNN. ML:1.4 0.00022841635 0.1152 AML other m 2019-09-28T20:08:42.89
IV.NRCA.HHE. ML:1.6 0.00034827275 0.1024 AML other m 2019-09-28T20:08:42.85
IV.NRCA.HHN. ML:1.5 0.00024123075 0.1024 AML other m 2019-09-28T20:08:42.84
IV.RM33.HNE. ML:1.8 0.00035305945 0.64 AML other m 2019-09-28T20:08:52.84
IV.RM33.HNN. ML:1.4 0.00014103965 0.8576 AML other m 2019-09-28T20:08:41.75
IV.RM33.EHE. ML:0.5 2.04617E-5 0.128 AML other m 2019-09-28T20:08:45.89
IV.RM33.EHN. ML:0.4 1.5034645E-5 0.2432 AML other m 2019-09-28T20:08:45.46
IV.FDMO.HHE. ML:0.1 7.0727825E-6 0.1536 AML other m 2019-09-28T20:08:50.36
IV.FDMO.HHN. ML:0.4 1.00341445E-5 0.2048 AML other m 2019-09-28T20:08:49.68
IV.CSP1.EHE. ML:0.8 2.13604255E-5 0.9984 AML other m 2019-09-28T20:08:46.75
IV.CSP1.EHN. ML:0.8 2.205686E-5 2.0608 AML other m 2019-09-28T20:09:08.62
IV.SERM.HNE. ML:3.3 0.00024869595 0.064 AML other m 2019-09-28T20:09:13.95
IV.SERM.HNN. ML:4.3 0.002369953 1.0496 AML other m 2019-09-28T20:09:41.56
IV.SERM.EHE. ML:2.6 5.070919E-5 0.3712 AML other m 2019-09-28T20:09:14.89
IV.SERM.EHN. ML:2.6 4.557342E-5 0.2816 AML other m 2019-09-28T20:10:04.84
IV.MBAL.HNE. ML:3.3 0.00014487465 0.7552 AML other m 2019-09-28T20:09:37.66
IV.MBAL.HNN. ML:3.4 0.0001778778 0.7936 AML other m 2019-09-28T20:10:04.17
IV.MBAL.EHE. ML:2.8 4.638994E-5 0.0768 AML other m 2019-09-28T20:09:50.42
IV.MBAL.EHN. ML:2.9 4.9874115E-5 0.0768 AML other m 2019-09-28T20:09:50.47
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