Earthquake with magnitude of ML 2.3 on date 21-01-2013 and time 11:44:05 (UTC) in region 3 km NE Amatrice (RI)

A magnitude ML 2.3 earthquake occured in region: 3 km NE Amatrice (RI), on

  • 21-01-2013 11:44:05 (UTC)
  • 21-01-2013 12:44:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6500, 13.3070 at 18 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
Amatrice RI 3 2657 2657
Accumoli RI 7 667 3324
Campotosto AQ 11 542 3866
Cittareale RI 13 482 4348
Arquata del Tronto AP 14 1178 5526
Capitignano AQ 14 665 6191
Montereale AQ 15 2581 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 17 656 12344
Crognaleto TE 18 1297 13641
Valle Castellana TE 18 977 14618
Rocca Santa Maria TE 19 537 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
34 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
78 Km W of Chieti (51815 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
91 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 2.3 2013-01-21
11:44:05
42.6497 13.3073 18 2015-01-20
11:18:19
Bollettino Sismico Italiano INGV 3150411
Reviewed
Rev100
ML 2.3 2013-01-21
11:44:05
42.6517 13.3067 18 2014-10-21
12:08:56
Sala Sismica INGV-Roma 2859101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-01-21 11:44:05 ± 0.13
Latitude 42.6497 ± 0.0063
Longitude 13.3073 ± 0.0086
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3150411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.69608
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 3150411
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 12:55:12

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 2859101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-01-21 11:50:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2013-01-21T11:44:23.04 0.6 undecidable manual S 123 52.0035 100 0.67 39
IV.GUMA.HHZ. 2013-01-21T11:44:21.43 0.6 undecidable manual S 3 45.9207 102 0.65 40
IV.FDMO.HHZ. 2013-01-21T11:44:20.96 0.6 undecidable manual S 337 46.5201 102 0.02 46
IV.ARRO.EHZ. 2013-01-21T11:44:20.90 1.0 undecidable manual S 260 44.9217 102 0.37 21
IV.SNTG.HHZ. 2013-01-21T11:44:19.09 0.6 undecidable manual P 336 73.4709 97 0.41 41
IV.EL6.EHZ. 2013-01-21T11:44:18.98 0.3 undecidable manual P 348 77.2671 96 -0.28 62
IV.TRTR.HHZ. 2013-01-21T11:44:16.26 0.6 undecidable manual P 70 52.4031 100 0.79 37
IV.LNSS.HHZ. 2013-01-21T11:44:15.32 0.6 undecidable manual S 257 22.3554 120 0.46 44
IV.NRCA.HNZ. 2013-01-21T11:44:15.49 0.6 undecidable manual S 322 25.752 115 -0.17 46
IV.VCEL.EHZ. 2013-01-21T11:44:15.33 0.1 undecidable manual P 123 52.0035 100 -0.07 91
IV.ARRO.EHZ. 2013-01-21T11:44:14.14 0.1 undecidable manual P 260 44.9217 102 -0.19 90
IV.FAGN.HHZ. 2013-01-21T11:44:14.88 0.6 undecidable manual P 152 48.2184 101 0.05 46
IV.FDMO.HHZ. 2013-01-21T11:44:14.20 0.1 undecidable manual P 337 46.5201 102 -0.38 86
IV.TERO.HHZ. 2013-01-21T11:44:14.92 0.6 undecidable manual S 97 24.3534 117 -0.41 44
IV.OFFI.HHZ. 2013-01-21T11:44:14.69 0.6 undecidable manual P 44 44.1225 103 0.47 42
IV.GUMA.HHZ. 2013-01-21T11:44:14.48 0.1 undecidable manual P 3 45.9207 102 0 93
IV.CAMP.HHZ. 2013-01-21T11:44:13.20 0.6 undecidable manual S 147 15.0738 133 -0.09 48
IV.LNSS.HHZ. 2013-01-21T11:44:11.08 0.1 undecidable manual P 257 22.3554 120 0.01 96
IV.SMA1.EHZ. 2013-01-21T11:44:11.82 0.6 undecidable manual S 133 3.0969 169 0.13 49
IV.NRCA.HNZ. 2013-01-21T11:44:11.33 0.3 undecidable manual P 322 25.752 115 -0.2 69
IV.TERO.HHZ. 2013-01-21T11:44:10.95 0.1 undecidable manual P 97 24.3534 117 -0.38 89
IV.CAMP.HHZ. 2013-01-21T11:44:10.05 0.1 undecidable manual P 147 15.0738 133 -0.1 96
IV.SMA1.EHZ. 2013-01-21T11:44:09.24 0.1 undecidable manual P 133 3.0969 169 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.9 0.00020700000000000002 1.36 AML other m 2013-01-21T11:44:25.07
IV.ARRO.EHE. ML:1.8 0.0001905 0.26 AML other m 2013-01-21T11:44:25.43
IV.CAMP.HHN. ML:2.0 0.0007515000000000001 0.44 AML other m 2013-01-21T11:44:13.55
IV.CAMP.HHE. ML:2.1 0.000951 0.28 AML other m 2013-01-21T11:44:13.44
IV.FAGN.HHE. ML:2.5 0.000752 0.24 AML other m 2013-01-21T11:44:23.78
IV.FAGN.HHN. ML:2.5 0.000745 0.24 AML other m 2013-01-21T11:44:23.68
IV.FDMO.HHN. ML:2.2 0.0003835 0.22 AML other m 2013-01-21T11:44:22.73
IV.FDMO.HHE. ML:1.9 0.00021150000000000002 0.24 AML other m 2013-01-21T11:44:23.23
IV.FIAM.HHN. ML:1.8 0.00017120000000000001 0.7 AML other m 2013-01-21T11:44:21.08
IV.FIAM.HHE. ML:1.9 0.0002195 0.54 AML other m 2013-01-21T11:44:24.34
IV.GUMA.HHN. ML:2.4 0.0006895 0.34 AML other m 2013-01-21T11:44:22.47
IV.GUMA.HHE. ML:2.6 0.0011194999999999998 0.32 AML other m 2013-01-21T11:44:22.02
IV.LNSS.HHN. ML:2.3 0.0009730000000000001 0.18 AML other m 2013-01-21T11:44:15.95
IV.LNSS.HHE. ML:2.2 0.0009025000000000001 0.58 AML other m 2013-01-21T11:44:17.99
IV.NRCA.HNN. ML:3.0 0.00441 0.1 AML other m 2013-01-21T11:44:16.23
IV.NRCA.HHE. ML:3.2 0.00793 0.16 AML other m 2013-01-21T11:44:15.67
IV.NRCA.HNE. ML:3.2 0.007835000000000002 0.16 AML other m 2013-01-21T11:44:15.67
IV.NRCA.HHN. ML:3.0 0.004355 0.1 AML other m 2013-01-21T11:44:16.23
IV.OFFI.HHE. ML:2.7 0.00143 0.68 AML other m 2013-01-21T11:44:23.30
IV.OFFI.HHN. ML:2.7 0.0014100000000000002 0.68 AML other m 2013-01-21T11:44:23.22
IV.SMA1.EHN. ML:2.4 0.00237 0.16 AML other m 2013-01-21T11:44:12.01
IV.SMA1.EHE. ML:2.8 0.005745 0.18 AML other m 2013-01-21T11:44:12.04
IV.SNTG.HHN. ML:1.8 0.00009635 1.08 AML other m 2013-01-21T11:44:29.39
IV.SNTG.HHE. ML:1.8 0.00010020000000000001 0.84 AML other m 2013-01-21T11:44:31.05
IV.TERO.HNE. ML:2.7 0.002311 1.48 AML other m 2013-01-21T11:44:15.31
IV.TERO.HHE. ML:2.2 0.0008575 0.6 AML other m 2013-01-21T11:44:15.31
IV.TERO.HNN. ML:2.3 0.000935 0.08 AML other m 2013-01-21T11:44:15.61
IV.TERO.HHN. ML:1.9 0.000415 0.08 AML other m 2013-01-21T11:44:15.57
IV.VCEL.EHN. ML:2.4 0.0005645 0.68 AML other m 2013-01-21T11:44:24.44
IV.VCEL.EHE. ML:2.4 0.0005909999999999999 0.46 AML other m 2013-01-21T11:44:23.85
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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