Earthquake with magnitude of Md 2.6 on date 08-08-1988 and time 04:35:36 (Italy) in region 2 km SE Acquasanta Terme (AP)

A magnitude Md 2.6 earthquake occured in region: 2 km SE Acquasanta Terme (AP), on

  • 08-08-1988 02:35:36 (UTC)
  • 08-08-1988 04:35:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.76, 13.42 at 6 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
Acquasanta Terme AP 2 2916 2916
Valle Castellana TE 7 977 3893
Arquata del Tronto AP 10 1178 5071
Rocca Santa Maria TE 12 537 5608
Montegallo AP 12 523 6131
Roccafluvione AP 13 2010 8141
Venarotta AP 15 2066 10207
Accumoli RI 16 667 10874
Palmiano AP 16 196 11070
Cortino TE 16 656 11726
Ascoli Piceno AP 17 49407 61133
Amatrice RI 18 2657 63790
Montemonaco AP 18 604 64394
Folignano AP 19 9241 73635

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
63 Km E of Foligno (57155 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
67 Km E of Terni (111501 inhabitants)
73 Km W of Pescara (121014 inhabitants)
76 Km NW of Chieti (51815 inhabitants)
93 Km E of Perugia (166134 inhabitants)
96 Km S of Ancona (100861 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
Rev 1000 Md 2.6
ML-VAX 1.9
1988-08-08
02:35:36
42.76 13.42 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 75009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-08-08 02:35:36 ± 0.202
Latitude 42.76 ± 0.01
Longitude 13.42 ± 0.02
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 75009

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) 1700.8
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 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.01198
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 75009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:10:44

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 75009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1988-08-08T02:36:13.86 10.0 undecidable manual SN 164 0.0097 -0.22 0.5
--.CP9.Z. 1988-08-08T02:36:10.85 10.0 undecidable manual SG 201 0.0086 0.67 0.3
--.AM8.Z. 1988-08-08T02:36:06.80 10.0 undecidable manual SG 9 0.0072 0.89 0.2
--.ARV.Z. 1988-08-08T02:36:05.70 10.0 undecidable manual SG 335 0.0074 -0.67 0.3
--.AZI.Z. 1988-08-08T02:36:03.50 10.0 undecidable manual SG 179 0.0069 -0.58 0.4
--.DUI.Z. 1988-08-08T02:36:02.50 10.0 undecidable manual PN 144 0.012 0.73 0.5
--.ASS.Z. 1988-08-08T02:36:00.19 10.0 undecidable manual SG 298 0.0057 0.2 0.7
--.MNS.Z. 1988-08-08T02:35:59.60 10.0 undecidable manual SG 236 0.0059 -0.98 0.1
--.SDI.Z. 1988-08-08T02:35:58.20 10.0 undecidable manual PN 164 0.0097 -0.28 1.3
--.CP9.Z. 1988-08-08T02:35:56.55 10.0 undecidable manual PG 201 0.0086 0.51 1
--.CM8.Z. 1988-08-08T02:35:55.20 10.0 undecidable manual SG 335 0.0043 0.1 1.1
--.AZI.Z. 1988-08-08T02:35:53.00 10.0 undecidable manual PG 179 0.0069 0.48 1.2
--.ARV.Z. 1988-08-08T02:35:53.10 10.0 undecidable manual PG 335 0.0074 -0.38 1.3
--.AM8.Z. 1988-08-08T02:35:53.47 10.0 undecidable manual PG 9 0.0072 0.31 1.5
--.AQU.Z. 1988-08-08T02:35:53.19 10.0 undecidable manual SG 182 0.0036 0.88 0.2
--.MNS.Z. 1988-08-08T02:35:49.86 10.0 undecidable manual PG 236 0.0059 -0.64 0.9
--.SS8.Z. 1988-08-08T02:35:49.14 10.0 undecidable manual SG 330 0.0025 1.14 0.1
--.ASS.Z. 1988-08-08T02:35:49.77 10.0 undecidable manual PG 298 0.0057 -0.39 1.5
--.CM8.Z. 1988-08-08T02:35:46.80 10.0 positive manual PG 335 0.0043 -0.43 2.7
--.AQU.Z. 1988-08-08T02:35:45.70 10.0 negative manual PG 182 0.0036 -0.02 3.8
--.SS8.Z. 1988-08-08T02:35:43.57 10.0 undecidable manual PG 330 0.0025 0.33 1.6
--.ALP.Z. 1988-08-08T02:35:40.91 10.0 undecidable manual SG 77 0.001 -0.52 0.7
--.ALP.Z. 1988-08-08T02:35:38.91 10.0 undecidable manual PG 77 0.001 -0.53 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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