Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 13-01-2020 and time 10:35:20 (Italy) in region 4 km N Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 4 km N Accumoli (RI), on

  • 13-01-2020 09:35:20 (UTC)
  • 13-01-2020 10:35:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7270, 13.2600 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 6 1178 1845
Amatrice RI 11 2657 4502
Acquasanta Terme AP 13 2916 7418
Montegallo AP 14 523 7941
Cittareale RI 15 482 8423
Norcia PG 16 4957 13380
Valle Castellana TE 20 977 14357

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
43 Km N of L'Aquila (69753 inhabitants)
52 Km E of Foligno (57155 inhabitants)
53 Km E of Terni (111501 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
83 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 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 1.8 2020-01-13
09:35:20		 42.7268 13.2602 10 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77022031
Reviewed
Rev100 		ML 2.0 2020-01-13
09:35:20		 42.7253 13.2618 10 2020-01-13
09:43:53		 Sala Sismica INGV-Roma 75511661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-13 09:35:20 ± 0.03
Latitude 42.7268 ± 0.0018
Longitude 13.2602 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77022031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 248
Semi-minor axis of confidence ellipse (meter) 226
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
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) 0.09443
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 75511661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-13 09:43:53

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 77022031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-25 11:05:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PF6.EHN. 2020-01-13T09:35:35.40 0.6 undecidable manual S 353 45.9207 50 0.21 46
IV.CESI.HHZ. 2020-01-13T09:35:34.30 0.6 undecidable manual S 317 42.2244 50 0.09 47
IV.GUMA.HHZ. 2020-01-13T09:35:33.55 0.3 undecidable manual S 9 37.7289 50 0.54 64
IV.GIGS.HHZ. 2020-01-13T09:35:33.20 0.3 undecidable manual S 140 39.627 50 -0.32 68
IV.CSP1.EHZ. 2020-01-13T09:35:33.70 0.3 undecidable manual S 354 40.7259 50 -0.11 71
IV.EL6.EHZ. 2020-01-13T09:35:32.39 0.6 undecidable manual P 349 68.0763 50 0.16 44
IV.FDMO.HHZ. 2020-01-13T09:35:32.80 0.6 undecidable manual S 338 37.1295 50 -0.04 48
IV.MF5.EHZ. 2020-01-13T09:35:32.10 0.6 undecidable manual S 29 33.1446 50 0.31 46
IV.T0110.HHZ. 2020-01-13T09:35:32.50 0.3 undecidable manual P 142 69.4749 50 0.04 68
IV.FEMA.HNE. 2020-01-13T09:35:31.09 0.6 undecidable manual S 327 31.2465 50 -0.17 47
IV.ASSB.HHZ. 2020-01-13T09:35:30.90 0.3 undecidable manual P 306 60.0954 50 -0.12 68
IV.MOMA.HHZ. 2020-01-13T09:35:30.69 0.3 undecidable manual P 279 56.7987 50 0.19 67
IV.GAVE.EHZ. 2020-01-13T09:35:30.90 0.6 undecidable manual S 263 30.0477 50 -0.06 48
IV.RM33.EHZ. 2020-01-13T09:35:29.60 0.3 undecidable manual S 189 24.4533 111 0.37 69
IV.PF6.EHN. 2020-01-13T09:35:28.69 0.6 undecidable manual P 353 45.9207 50 -0.13 46
IV.LNSS.HHZ. 2020-01-13T09:35:28.70 0.3 undecidable manual S 233 22.5552 113 0.07 73
IV.CAMP.HHZ. 2020-01-13T09:35:28.96 0.3 undecidable manual S 150 24.4533 111 -0.26 70
IV.CESI.HHZ. 2020-01-13T09:35:28.11 0.1 undecidable manual P 317 42.2244 50 -0.15 93
IV.GUMA.HHZ. 2020-01-13T09:35:27.81 0.1 positive manual P 9 37.7289 50 0.24 92
IV.CSP1.EHZ. 2020-01-13T09:35:27.85 0.3 undecidable manual P 354 40.7259 50 -0.17 70
IT.MTCL.HGZ. 2020-01-13T09:35:27.14 0.6 undecidable manual P 325 36.4413 50 -0.22 46
IV.MF5.EHZ. 2020-01-13T09:35:27.08 0.3 undecidable manual P 29 33.1446 50 0.22 70
IV.GIGS.HHZ. 2020-01-13T09:35:27.72 0.3 undecidable manual P 140 39.627 50 -0.14 70
IV.MMO1.EHZ. 2020-01-13T09:35:27.70 0.3 undecidable manual S 16 19.869 116 -0.07 74
IV.FDMO.HHZ. 2020-01-13T09:35:27.39 0.3 undecidable manual P 338 37.1295 50 -0.08 72
IV.NRCA.HNZ. 2020-01-13T09:35:26.40 0.6 undecidable manual S 315 16.7721 120 -0.41 46
IV.GAVE.EHZ. 2020-01-13T09:35:26.19 0.1 positive manual P 263 30.0477 50 -0.19 94
IV.FEMA.HNE. 2020-01-13T09:35:26.41 0.3 undecidable manual P 327 31.2465 50 -0.14 71
IV.LNSS.HHZ. 2020-01-13T09:35:25.16 0.1 positive manual P 233 22.5552 113 0.12 97
IV.MTRA.EHZ. 2020-01-13T09:35:25.10 0.3 undecidable manual S 73 11.5773 129 -0.23 72
IV.RM33.EHZ. 2020-01-13T09:35:25.34 0.3 undecidable manual P 189 24.4533 111 -0.04 74
IV.SMA1.EHZ. 2020-01-13T09:35:25.30 0.3 undecidable manual S 150 12.2766 128 -0.22 72
IV.T1299.HNE. 2020-01-13T09:35:25.20 0.3 undecidable manual S 170 10.4784 132 0.18 73
IV.CAMP.HHZ. 2020-01-13T09:35:25.22 0.1 negative manual P 150 24.4533 111 -0.16 96
IV.MC2.EHZ. 2020-01-13T09:35:24.80 0.1 positive manual P 344 21.2676 114 0.01 99
IV.MMO1.EHZ. 2020-01-13T09:35:24.52 0.1 positive manual P 16 19.869 116 -0.02 99
IV.SMA1.EHZ. 2020-01-13T09:35:23.43 0.1 positive manual P 150 12.2766 128 0.19 97
IV.MTRA.EHZ. 2020-01-13T09:35:23.21 0.1 positive manual P 73 11.5773 129 0.08 100
IV.T1299.HNE. 2020-01-13T09:35:23.26 0.1 negative manual P 170 10.4784 132 0.31 95
IV.NRCA.HNZ. 2020-01-13T09:35:23.97 0.1 positive manual P 315 16.7721 120 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.8 0.0007223043 0.1856 AML other m 2020-01-13T09:35:25.30
IV.MTRA.HNN. ML:1.8 0.0008377957 0.2304 AML other m 2020-01-13T09:35:25.53
IV.SMA1.EHN. ML:2.0 0.001260062 0.16 AML other m 2020-01-13T09:35:25.73
IV.SMA1.EHE. ML:1.8 0.0007761364 0.1792 AML other m 2020-01-13T09:35:25.80
IV.MTRA.EHE. ML:1.8 0.0007303603000000001 0.2816 AML other m 2020-01-13T09:35:26.04
IV.MTRA.HNE. ML:1.8 0.0007251708 0.288 AML other m 2020-01-13T09:35:26.04
IV.NRCA.HNE. ML:2.0 0.0009477303499999999 0.128 AML other m 2020-01-13T09:35:27.10
IV.NRCA.HHE. ML:2.0 0.00100789725 0.1216 AML other m 2020-01-13T09:35:27.10
IV.NRCA.HNN. ML:1.9 0.0006828178499999999 0.1536 AML other m 2020-01-13T09:35:27.50
IV.NRCA.HHN. ML:1.9 0.00069259805 0.16 AML other m 2020-01-13T09:35:27.50
IV.LNSS.HNE. ML:2.2 0.0009646182 1.7888 AML other m 2020-01-13T09:35:29.90
IV.CAMP.HHN. ML:1.7 0.00030989085 0.1984 AML other m 2020-01-13T09:35:29.16
IV.LNSS.HHE. ML:2.2 0.0009912847999999999 0.1408 AML other m 2020-01-13T09:35:29.16
IV.CAMP.HHE. ML:1.8 0.00036816135 0.1984 AML other m 2020-01-13T09:35:29.14
IV.LNSS.HHN. ML:2.2 0.0011426829999999998 0.16 AML other m 2020-01-13T09:35:29.29
IV.LNSS.HNN. ML:2.2 0.00108160055 0.16 AML other m 2020-01-13T09:35:29.29
IV.RM33.HNE. ML:1.5 0.000175160165 1.6544 AML other m 2020-01-13T09:35:30.08
IV.GAVE.HNE. ML:2.2 0.00074253075 0.1536 AML other m 2020-01-13T09:35:31.77
IV.GAVE.EHE. ML:2.2 0.0008880247999999999 0.1408 AML other m 2020-01-13T09:35:31.78
IV.GAVE.HNN. ML:1.9 0.00035732684999999995 0.1792 AML other m 2020-01-13T09:35:31.79
IV.GAVE.EHN. ML:2.3 0.0010858869 0.1856 AML other m 2020-01-13T09:35:31.79
IV.MF5.EHN. ML:1.6 0.00015534799999999998 0.2176 AML other m 2020-01-13T09:35:32.81
IV.MF5.EHE. ML:1.7 0.0002020208 0.2432 AML other m 2020-01-13T09:35:33.15
IV.FDMO.HHE. ML:1.6 0.00014432455 0.16 AML other m 2020-01-13T09:35:33.26
IV.FDMO.HHN. ML:1.6 0.00014844065 0.32 AML other m 2020-01-13T09:35:33.24
IV.RM33.EHN. ML:1.4 0.00013762760000000002 0.416 AML other m 2020-01-13T09:35:33.60
IV.RM33.HNN. ML:1.4 0.00015711225 0.4096 AML other m 2020-01-13T09:35:33.60
IV.GIGS.HHN. ML:1.2 0.00006005891 0.1408 AML other m 2020-01-13T09:35:33.81
IV.GIGS.HHE. ML:1.3 0.00007062745500000001 0.16 AML other m 2020-01-13T09:35:34.06
IV.GUMA.HNE. ML:2.5 0.001345213 0.256 AML other m 2020-01-13T09:35:34.16
IV.GUMA.HHE. ML:2.6 0.001665 0.24 AML other m 2020-01-13T09:35:34.28
IV.CESI.HHE. ML:1.6 0.00012665746 0.2048 AML other m 2020-01-13T09:35:34.86
IV.GUMA.HHN. ML:2.3 0.0008157483 0.2816 AML other m 2020-01-13T09:35:34.79
IV.CESI.HHN. ML:1.9 0.0002405 1.72 AML other m 2020-01-13T09:35:35.90
IV.CESI.HNN. ML:1.9 0.00027036035000000004 0.3008 AML other m 2020-01-13T09:35:34.90
IV.CSP1.EHN. ML:1.3 0.00006352756500000001 0.16 AML other m 2020-01-13T09:35:35.16
IV.RM33.EHE. ML:1.4 0.00015150965 0.416 AML other m 2020-01-13T09:35:35.56
IV.CSP1.EHE. ML:1.6 0.00011867850000000001 0.3392 AML other m 2020-01-13T09:35:37.64
IV.MOMA.HHN. ML:1.7 0.00011781824999999999 0.1792 AML other m 2020-01-13T09:35:40.03
IV.MOMA.HHE. ML:1.7 0.000120393205 0.16 AML other m 2020-01-13T09:35:40.11
IV.ASSB.HHE. ML:1.5 0.00007055278 0.1664 AML other m 2020-01-13T09:35:40.31
IV.ASSB.HHN. ML:1.5 0.00007048952 0.1536 AML other m 2020-01-13T09:35:41.75
IV.MOMA.HNN. ML:1.7 0.00012074836 0.2496 AML other m 2020-01-13T09:35:41.68
IV.EL6.EHE. ML:1.5 0.000048947375 0.1024 AML other m 2020-01-13T09:35:44.18
IV.EL6.EHN. ML:1.5 0.000059847155 0.4736 AML other m 2020-01-13T09:35:45.02
IV.T0110.HHE. ML:1.8 0.00009275413000000001 0.4224 AML other m 2020-01-13T09:35:45.04
IV.T0110.HHN. ML:1.6 0.000077391425 0.1984 AML other m 2020-01-13T09:35:45.28
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