Earthquake with magnitude of ML 1.0 on date 15-03-2020 and time 17:31:18 (UTC) in region 2 km SE Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 2 km SE Amatrice (RI), on

  • 15-03-2020 17:31:18 (UTC)
  • 15-03-2020 18:31:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6160, 13.3090 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.

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 2 2657 2657
Campotosto AQ 8 542 3199
Accumoli RI 10 667 3866
Capitignano AQ 11 665 4531
Montereale AQ 11 2581 7112
Cittareale RI 12 482 7594
Crognaleto TE 16 1297 8891
Cortino TE 16 656 9547
Arquata del Tronto AP 18 1178 10725
Borbona RI 18 617 11342
Barete AQ 18 737 12079
Cagnano Amiterno AQ 19 1369 13448
Acquasanta Terme AP 19 2916 16364
Rocca Santa Maria TE 20 537 16901
Pizzoli AQ 20 4326 21227

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
76 Km W of Pescara (121014 inhabitants)
76 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
93 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
Md 1.4
ML 1.0
2020-03-15
17:31:18
42.6158 13.3087 11 2020-07-18
21:08:28
Bollettino Sismico Italiano INGV 77537861
Reviewed
Rev100
ML 1.0 2020-03-15
17:31:18
42.6158 13.3088 11 2020-03-15
21:06:19
Sala Sismica INGV-Roma 77282991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-15 17:31:18 ± 0.04
Latitude 42.6158 ± 0.0027
Longitude 13.3087 ± 0.0037
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 77537861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 356
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 148
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
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 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.25990
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 77537861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-24 16:41:06

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 77282991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-15 21:06:19

Md:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 7
Type of magnitude Md
Reference to an origin 77537861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-24 16:41:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-03-15T17:31:28.23 0.3 undecidable manual S 327 28.8489 50 -0.06 73
IV.LNSS.HHZ. 2020-03-15T17:31:26.43 0.1 undecidable manual S 266 21.9669 50 -0.01 100
IV.TERO.HHZ. 2020-03-15T17:31:26.88 0.3 undecidable manual S 88 24.1536 50 -0.14 73
IV.NRCA.HHZ. 2020-03-15T17:31:24.04 0.1 undecidable manual P 327 28.8489 50 0.07 98
IV.RM33.EHZ. 2020-03-15T17:31:24.03 0.3 undecidable manual S 213 14.1747 128 -0.23 73
IV.MTRA.HNZ. 2020-03-15T17:31:24.96 0.3 undecidable manual S 25 17.1717 122 -0.17 73
IV.TERO.HHZ. 2020-03-15T17:31:23.29 0.1 undecidable manual P 88 24.1536 50 0.05 99
IV.MTRA.HNZ. 2020-03-15T17:31:22.19 0.3 undecidable manual P 25 17.1717 122 0.04 75
IV.LNSS.HHZ. 2020-03-15T17:31:22.89 0.3 undecidable manual P 266 21.9669 50 -0.01 75
IV.RM33.EHZ. 2020-03-15T17:31:21.74 0.1 undecidable manual P 213 14.1747 128 0.09 100
IV.T1299.HNZ. 2020-03-15T17:31:21.84 0.3 undecidable manual S 313 2.997 165 -0.15 75
IV.SMA1.EHZ. 2020-03-15T17:31:21.99 0.3 undecidable manual S 53 2.6973 166 0.02 77
IV.T1299.HNZ. 2020-03-15T17:31:20.49 0.3 undecidable manual P 313 2.997 165 0.16 75
IV.SMA1.EHZ. 2020-03-15T17:31:20.56 0.3 undecidable manual P 53 2.6973 166 0.24 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.6 0.0007185 0.22 AML other m 2020-03-15T17:31:22.21
IV.SMA1.EHN. ML:1.2 0.0002825 0.12 AML other m 2020-03-15T17:31:22.38
IV.RM33.EHN. ML:0.8 0.0000621 0.28 AML other m 2020-03-15T17:31:24.18
IV.RM33.EHE. ML:0.9 0.0000746 0.16 AML other m 2020-03-15T17:31:24.58
IV.TERO.HHE. ML:0.7 0.000032349999999999994 0.64 AML other m 2020-03-15T17:31:28.55
IV.NRCA.HHN. ML:0.9 0.0000421 0.46 AML other m 2020-03-15T17:31:28.53
IV.NRCA.HHE. ML:1.0 0.00005235 0.1 AML other m 2020-03-15T17:31:28.50
IV.TERO.HHN. ML:1.4 0.000157 1.18 AML other m 2020-03-15T17:31:34.94
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