Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 31-03-2019 and time 07:52:29 (Italy) in region 3 km SW Amatrice (RI)

A magnitude ML 2.1 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 31-03-2019 05:52:29 (UTC)
  • 31-03-2019 07:52:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6080, 13.2610 at 11 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.

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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
Amatrice RI 3 2657 2657
Cittareale RI 8 482 3139
Montereale AQ 9 2581 5720
Accumoli RI 10 667 6387
Capitignano AQ 10 665 7052
Campotosto AQ 11 542 7594
Borbona RI 15 617 8211
Posta RI 16 694 8905
Cagnano Amiterno AQ 17 1369 10274
Barete AQ 17 737 11011
Arquata del Tronto AP 19 1178 12189
Crognaleto TE 19 1297 13486
Pizzoli AQ 19 4326 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 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 2.1 2019-03-31
05:52:29		 42.6077 13.2608 11 2019-08-22
08:24:55		 Bollettino Sismico Italiano INGV 67410781
Reviewed
Rev100 		ML 2.1 2019-03-31
05:52:29		 42.6078 13.2652 11 2019-03-31
06:00:41		 Sala Sismica INGV-Roma 67101471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-31 05:52:29 ± 0.06
Latitude 42.6077 ± 0.0036
Longitude 13.2608 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67410781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 395
Semi-minor axis of confidence ellipse (meter) 337
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92001
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 67410781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-30 07:36:59

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 56
Type of magnitude ML
Reference to an origin 67101471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-31 06:00:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RDP.HHZ. 2019-03-31T05:52:59.64 3.0 undecidable manual S -2.48 0
IV.ATVO.HHZ. 2019-03-31T05:52:50.95 3.0 undecidable manual P 2.5 0
IV.LRP.EHZ. 2019-03-31T05:52:50.04 3.0 positive manual P 1.4 0
IV.MGAB.HHZ. 2019-03-31T05:52:46.88 0.6 undecidable manual P 290 99.5226 50 0.43 39
IV.GUMA.HHZ. 2019-03-31T05:52:46.60 0.1 undecidable manual S 7 50.8158 50 0.83 75
IV.CSP1.EHZ. 2019-03-31T05:52:46.70 0.6 undecidable manual S 355 53.9016 50 0.11 46
IV.CESX.HHZ. 2019-03-31T05:52:46.98 0.3 undecidable manual S 270 55.0005 50 0.09 69
IV.ARVD.HHZ. 2019-03-31T05:52:46.74 0.6 undecidable manual P 345 102.12 50 -0.12 42
IV.CESI.HHZ. 2019-03-31T05:52:46.40 1.0 undecidable manual S 327 52.7028 50 0.12 23
IV.MF5.EHZ. 2019-03-31T05:52:45.10 0.3 undecidable manual S 21 45.2214 50 0.84 56
IV.FDMO.HHZ. 2019-03-31T05:52:45.50 0.3 undecidable manual S 344 49.617 50 0.05 70
IV.FEMA.HNE. 2019-03-31T05:52:43.90 0.6 undecidable manual S 336 42.9237 50 0.25 46
IV.ATCC.EHZ. 2019-03-31T05:52:43.76 0.3 undecidable manual P 322 81.5517 50 0.07 66
IV.EL6.EHZ. 2019-03-31T05:52:43.48 0.6 undecidable manual P 351 81.0522 50 -0.14 43
IV.SNTG.HHZ. 2019-03-31T05:52:42.88 0.6 undecidable manual P 340 76.368 50 -0.01 45
IV.FIAM.HHZ. 2019-03-31T05:52:42.70 0.6 undecidable manual S 197 39.4272 50 -0.04 48
IV.CERT.HHZ. 2019-03-31T05:52:42.79 0.6 undecidable manual P 197 76.5678 50 -0.13 44
IV.MC2.EHZ. 2019-03-31T05:52:41.40 0.6 undecidable manual S 350 34.2435 50 0.07 48
IV.PTQR.HHZ. 2019-03-31T05:52:41.14 1.0 undecidable manual P 170 65.9895 50 -0.15 22
IV.TRTR.HHZ. 2019-03-31T05:52:41.04 0.3 undecidable manual P 67 57.6978 50 1.02 51
IV.MMO1.EHZ. 2019-03-31T05:52:40.60 0.1 undecidable manual S 9 32.8449 50 -0.36 91
IV.MNTT.EHZ. 2019-03-31T05:52:40.63 3.0 positive manual P 0.75 0
IV.GIGS.HHZ. 2019-03-31T05:52:40.20 0.3 undecidable manual S 124 30.747 50 -0.21 71
IV.CSP1.EHZ. 2019-03-31T05:52:39.25 0.1 undecidable manual P 355 53.9016 50 -0.18 91
IV.CESX.HHZ. 2019-03-31T05:52:39.46 0.3 undecidable manual P 270 55.0005 50 -0.14 68
IV.OFFI.HHZ. 2019-03-31T05:52:39.53 0.3 undecidable manual P 43 50.1165 50 0.68 60
IV.CESI.HHZ. 2019-03-31T05:52:39.15 0.3 undecidable manual P 327 52.7028 50 -0.1 69
IV.NRCA.HHZ. 2019-03-31T05:52:39.00 0.3 undecidable manual S 335 27.75 50 -0.61 64
IV.VCEL.EHZ. 2019-03-31T05:52:39.63 0.3 undecidable manual P 116 53.0025 50 0.34 66
IV.GUMA.HHZ. 2019-03-31T05:52:39.09 0.3 undecidable manual P 7 50.8158 50 0.13 69
IV.TERO.HHZ. 2019-03-31T05:52:39.10 0.3 undecidable manual S 86 28.0497 50 -0.59 64
IV.FDMO.HHZ. 2019-03-31T05:52:38.44 0.6 undecidable manual P 344 49.617 50 -0.33 44
IV.MF5.EHZ. 2019-03-31T05:52:38.38 0.3 undecidable manual P 21 45.2214 50 0.3 67
IV.FAGN.HHZ. 2019-03-31T05:52:38.12 1.0 undecidable manual P 145 46.2204 50 -0.13 23
IV.FEMA.HNE. 2019-03-31T05:52:37.62 0.3 undecidable manual P 336 42.9237 50 -0.12 70
IV.FIAM.HHZ. 2019-03-31T05:52:37.15 0.3 undecidable manual P 197 39.4272 50 -0.06 72
IV.MTRA.HNZ. 2019-03-31T05:52:36.80 0.3 undecidable manual S 34 19.869 118 -0.68 63
IV.MC2.EHZ. 2019-03-31T05:52:36.25 0.3 undecidable manual P 350 34.2435 50 -0.14 71
IV.LNSS.HNZ. 2019-03-31T05:52:36.80 0.1 undecidable manual S 268 17.9709 121 -0.11 98
IV.MMO1.EHZ. 2019-03-31T05:52:35.96 0.1 undecidable manual P 9 32.8449 50 -0.22 94
IV.CAMP.HHZ. 2019-03-31T05:52:35.80 0.1 undecidable manual S 123 14.4744 126 -0.09 99
IV.NRCA.HHZ. 2019-03-31T05:52:35.15 0.1 undecidable manual P 335 27.75 50 -0.25 94
IV.RM33.HNZ. 2019-03-31T05:52:35.20 0.3 undecidable manual S 199 11.5773 133 0.09 75
IV.TERO.HHZ. 2019-03-31T05:52:35.17 0.1 undecidable manual P 86 28.0497 50 -0.28 93
IV.GIGS.HHZ. 2019-03-31T05:52:35.68 0.1 undecidable manual P 124 30.747 50 -0.18 95
IV.SMA1.EHZ. 2019-03-31T05:52:34.10 0.3 undecidable manual S 67 6.5934 148 0.1 75
IV.RM33.HNZ. 2019-03-31T05:52:33.09 0.1 undecidable manual P 199 11.5773 133 0.29 96
IV.LNSS.HNZ. 2019-03-31T05:52:33.86 0.1 undecidable manual P 268 17.9709 121 0.02 100
IV.CAMP.HHZ. 2019-03-31T05:52:33.38 0.1 undecidable manual P 123 14.4744 126 0.13 98
IV.MTRA.HNZ. 2019-03-31T05:52:33.92 0.1 undecidable manual P 34 19.869 118 -0.25 95
IV.SMA1.EHZ. 2019-03-31T05:52:32.48 0.1 undecidable manual P 67 6.5934 148 0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:3.3 0.027608890000000004 0.2624 AML other m 2019-03-31T05:52:34.42
IV.RM33.HNE. ML:2.6 0.0045314575 0.24 AML other m 2019-03-31T05:52:36.03
IV.RM33.EHE. ML:2.6 0.0043985305 0.24 AML other m 2019-03-31T05:52:36.03
IV.CAMP.HHE. ML:1.5 0.0003145848 0.2816 AML other m 2019-03-31T05:52:36.28
IV.RM33.HNN. ML:2.4 0.0028620495 0.1792 AML other m 2019-03-31T05:52:36.59
IV.RM33.EHN. ML:2.4 0.002911419 0.1792 AML other m 2019-03-31T05:52:36.59
IV.LNSS.HHE. ML:2.4 0.0019364775 0.1216 AML other m 2019-03-31T05:52:36.99
IV.MTRA.HNN. ML:2.6 0.003110039 0.2624 AML other m 2019-03-31T05:52:37.27
IV.MTRA.EHN. ML:2.6 0.0030782265 0.2816 AML other m 2019-03-31T05:52:37.28
IV.LNSS.HNN. ML:2.3 0.001627302 0.2176 AML other m 2019-03-31T05:52:37.53
IV.LNSS.HNE. ML:2.4 0.0018493300000000002 0.1376 AML other m 2019-03-31T05:52:37.61
IV.LNSS.HHN. ML:2.4 0.0018115680000000002 0.1984 AML other m 2019-03-31T05:52:37.54
IV.CAMP.HHN. ML:1.8 0.00056563685 0.2816 AML other m 2019-03-31T05:52:37.70
IV.MTRA.HNE. ML:2.6 0.0032534160000000003 0.2272 AML other m 2019-03-31T05:52:37.78
IV.MTRA.EHE. ML:2.6 0.0032272375 0.2176 AML other m 2019-03-31T05:52:37.78
IV.NRCA.HHN. ML:2.5 0.0015116315 0.1184 AML other m 2019-03-31T05:52:39.14
IV.NRCA.HNN. ML:2.4 0.0013337395 0.1088 AML other m 2019-03-31T05:52:39.14
IV.TERO.HHN. ML:2.1 0.0006800897500000001 0.1792 AML other m 2019-03-31T05:52:39.23
IV.TERO.HNE. ML:1.8 0.00033421125 0.2688 AML other m 2019-03-31T05:52:39.36
IV.TERO.HHE. ML:2.0 0.00047480250000000003 0.2592 AML other m 2019-03-31T05:52:39.36
IV.TERO.HNN. ML:1.8 0.00035762785 0.2016 AML other m 2019-03-31T05:52:39.48
IV.NRCA.HNE. ML:2.5 0.0015131615 0.1376 AML other m 2019-03-31T05:52:39.65
IV.NRCA.HHE. ML:2.5 0.001620653 0.1376 AML other m 2019-03-31T05:52:39.65
IV.GIGS.HHN. ML:1.5 0.00014466989 0.1376 AML other m 2019-03-31T05:52:40.26
IV.GIGS.HHE. ML:1.4 0.00011949999999999999 0.2 AML other m 2019-03-31T05:52:41.62
IV.FIAM.HHE. ML:1.5 0.00010211350000000001 0.4608 AML other m 2019-03-31T05:52:43.22
IV.MF5.EHE. ML:2.2 0.00041668735 0.3808 AML other m 2019-03-31T05:52:45.51
IV.MF5.EHN. ML:2.3 0.00064553065 0.3616 AML other m 2019-03-31T05:52:45.37
IV.FDMO.HHN. ML:1.9 0.00019367045 0.1792 AML other m 2019-03-31T05:52:46.51
IV.FIAM.HHN. ML:1.6 0.0001338144 0.3008 AML other m 2019-03-31T05:52:46.70
IV.GUMA.HNE. ML:2.5 0.0007853333 0.3392 AML other m 2019-03-31T05:52:46.84
IV.GUMA.HHE. ML:2.7 0.001163688 0.3392 AML other m 2019-03-31T05:52:46.84
IV.FDMO.HHE. ML:1.7 0.00014495875 0.1984 AML other m 2019-03-31T05:52:47.55
IV.GUMA.HHN. ML:2.4 0.00074651395 0.4192 AML other m 2019-03-31T05:52:47.32
IV.CSP1.EHN. ML:2.0 0.00020899845 0.1984 AML other m 2019-03-31T05:52:47.91
IV.CSP1.EHE. ML:1.9 0.00019674075000000003 0.16 AML other m 2019-03-31T05:52:48.20
IV.VCEL.EHN. ML:2.2 0.00036576755 0.16 AML other m 2019-03-31T05:52:48.31
IV.CESX.HHE. ML:1.9 0.00018671375 0.1984 AML other m 2019-03-31T05:52:48.49
IV.OFFI.HHE. ML:1.6 0.00010453232000000002 0.2592 AML other m 2019-03-31T05:52:48.54
IV.CESX.HHN. ML:2.0 0.00021469090000000003 0.1408 AML other m 2019-03-31T05:52:48.66
IV.FIAM.HNN. ML:1.9 0.0002856229 0.3296 AML other m 2019-03-31T05:52:48.81
IV.CESI.HHN. ML:1.8 0.00015749544999999997 0.16 AML other m 2019-03-31T05:52:48.81
IV.FAGN.HHE. ML:2.1 0.0003422766 0.3616 AML other m 2019-03-31T05:52:49.44
IV.FAGN.HHN. ML:1.9 0.00023654360000000002 0.3008 AML other m 2019-03-31T05:52:50.15
IV.VCEL.EHE. ML:2.1 0.00027355125 0.2592 AML other m 2019-03-31T05:52:51.38
IV.TRTR.HHE. ML:2.2 0.0003348057 0.32 AML other m 2019-03-31T05:52:53.73
IV.CESI.HHE. ML:1.6 0.000095087055 0.2816 AML other m 2019-03-31T05:52:53.78
IV.OFFI.HHN. ML:2.1 0.00032640305000000003 0.4384 AML other m 2019-03-31T05:52:54.08
IV.MNTT.EHN. ML:2.4 0.0005301005999999999 0.3616 AML other m 2019-03-31T05:52:56.00
IV.CERT.HHN. ML:1.7 0.00008221550999999999 0.4384 AML other m 2019-03-31T05:52:57.80
IV.MNTT.EHE. ML:2.1 0.00029661933 0.4224 AML other m 2019-03-31T05:52:57.59
IV.EL6.EHN. ML:2.0 0.00013302875 0.3424 AML other m 2019-03-31T05:52:57.43
IV.TRTR.HHN. ML:2.2 0.0003256555 0.3584 AML other m 2019-03-31T05:52:58.26
IV.EL6.EHE. ML:2.0 0.00013562954999999998 0.16 AML other m 2019-03-31T05:52:58.16
IV.SNTG.HHN. ML:1.7 0.00007259201499999999 0.24 AML other m 2019-03-31T05:52:59.54
IV.CERT.HHE. ML:1.8 0.00009966757500000001 0.4224 AML other m 2019-03-31T05:52:59.81
IV.ATCC.EHN. ML:1.7 0.000066200535 0.3584 AML other m 2019-03-31T05:52:59.94
IV.ATCC.EHE. ML:1.8 0.000075240295 0.32 AML other m 2019-03-31T05:53:00.12
IV.SNTG.HHE. ML:1.5 0.000048298980000000005 0.2592 AML other m 2019-03-31T05:53:02.16
IV.MGAB.HNN. ML:1.9 0.000073423355 0.3808 AML other m 2019-03-31T05:53:02.84
IV.MGAB.HHE. ML:2.0 0.00010547406500000001 0.3584 AML other m 2019-03-31T05:53:03.32
IV.MGAB.HNE. ML:2.0 0.00009527598 0.3968 AML other m 2019-03-31T05:53:03.95
IV.MGAB.HHN. ML:1.8 0.000070219415 0.32 AML other m 2019-03-31T05:53:05.68
IV.ARVD.HHN. ML:1.5 0.00003106701 0.4608 AML other m 2019-03-31T05:53:08.13
IV.ARVD.HHE. ML:1.6 0.000038258449999999996 0.3808 AML other m 2019-03-31T05:53:09.49
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 Download