Earthquake with magnitude of Md 2.2 on date 21-07-1992 and time 03:46:36 (Italy) in region 6 km SW Amatrice (RI)

A magnitude Md 2.2 earthquake occured in region: 6 km SW Amatrice (RI), on

  • 21-07-1992 01:46:36 (UTC)
  • 21-07-1992 03:46:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6000, 13.2300 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.

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 6 2657 2657
Cittareale RI 6 482 3139
Montereale AQ 8 2581 5720
Capitignano AQ 11 665 6385
Accumoli RI 11 667 7052
Campotosto AQ 12 542 7594
Borbona RI 13 617 8211
Posta RI 14 694 8905
Cagnano Amiterno AQ 16 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
82 Km W of Chieti (51815 inhabitants)
82 Km W of Pescara (121014 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
100 Km NE of Roma (2864731 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 2.2 1992-07-21
01:46:36
42.6 13.23 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 169869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-07-21 01:46:36 ± 0.226
Latitude 42.6000 ± 0.0128
Longitude 13.2300 ± 0.0181
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 169869

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2052.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00534
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 169869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:38:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CIO.Z. 1992-07-21T01:46:57.30 10.0 undecidable manual SG 354 0.5883 0.09 0.5
--.MNS.Z. 1992-07-21T01:46:52.68 10.0 undecidable manual SG 242 0.444 -0.05 0.6
--.RMF.Z. 1992-07-21T01:46:49.50 10.0 undecidable manual SG 357 0.3552 0.11 0.9
--.AQU.Z. 1992-07-21T01:46:48.23 10.0 undecidable manual SG 152 0.2664 1.32 0
--.CIO.Z. 1992-07-21T01:46:48.00 10.0 undecidable manual PG 354 0.5883 -0.29 1
--.ALP.Z. 1992-07-21T01:46:47.90 10.0 undecidable manual SG 53 0.3108 0.05 0.9
--.MNS.Z. 1992-07-21T01:46:45.88 10.0 undecidable manual PG 242 0.444 0.17 1.3
--.RMF.Z. 1992-07-21T01:46:43.90 10.0 undecidable manual PG 357 0.3552 0.12 3
--.ALP.Z. 1992-07-21T01:46:42.90 10.0 undecidable manual PG 53 0.3108 0.01 1.6
--.AQU.Z. 1992-07-21T01:46:41.55 10.0 undecidable manual PG 152 0.2664 -0.79 0.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download